Lena

A video store rents, on average, 240 videos a day for $2.00 each…

Posted:

A video store rents, on average, 240 videos a day for $2.00 each. The store determined that for every $0.25 that it increases the rental fee, the number of daily rentals will decrease by 10. This relationship can be represented by
y=(240-10n)(2+0.25n)
where y is the daily income in dollars from video rentals and n is the number of $0.25 increases. Based on this relationship, at what rental fee per video will the store have its highest daily income?
A)$2
B)$4
C)$4.25
D)$7.75
E)$8
SAT2 question:)

Lena

Triangles ABC and ABD share side AB…

Posted:

Triangles ABC and ABD share side AB.
Triangle ABC has area Q and triangle ABD has area R. If AD is longer than AC and BD is longer than BC, which of the following could be true?
I-R> Q
II R=Q
III R < Q
I chose "I" only but the answer was E (all of them could be.) How can the second and third condition be true?
Thanks in advance!

Lena

Is it a good idea to solve a full length test everyday, except on Friday, the week before the test?

Posted:

I registered in NOV test sat1 ,but I will have it in another country because the country i live in has it only for sat subject test.
I will travel on Thursday morning ,So i won’t be able to solve a full length test on thursday. On Tuesday and Wednesday i will solve a full length one. Can i solve a full length on friday?
Also is it a good idea to solve a full length test everyday ,except on friday, the week before the test?
I need your opinion and if you have any advice tell me please.

Lena

(Something of) a history buff, my uncle has a collection (of) first edition biographies that (has been featured) in newspaper articles and magazine stories (alike).

Posted:

(Something of) a history buff,my uncle has a collection (of) first edition biographies that (has been featured) in newspaper articles and magazine stories (alike).

Is “something of a history buff” modifiying the uncle? if no, then what does it function?

Thanks in advance = )

Lena

The figure above represents four offices that will be assigned randomly to four employees, one employee per office…

Posted:

The figure above represents four offices that will be
assigned randomly to four employees, one employee
per office. If Karen and Tina are two of the four
employees, what is the probability that each will be
assigned an office indicated with an X ?

The figure is Four boxes or (offices) and two of them are labeled X.

Lena

Can you explain number 14 in diagnostic drill 3?

Posted:

Can you explain number 14 in diagnostic drill 3?
I tried solving it and i read the explanation of patterns.
i got the repeating units of the sequence which is 1,4,6,4,6,4,6
when he asked for the 53rd term should I divide 53 by 3 or 2?
I got confused because the one isn’t repeated again in the pattern.

Thanks in advance =)