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# Recent Posts

#### Can you suggest a quick method to solve College Board Practice Test 5 Math Section 3 #14?

April 2, 2020#### The call signs of radio and television stations in the United States generally begin with the letter W east of the Mississippi River and the letter K west of the Mississippi…

March 18, 2020The call signs of radio and television stations in the United States generally begin with the letter W east of the Mississippi River and the letter K west of the Mississippi. Repetition of letters is allowed. How many different call signs are possible if each station uses a W or K followed by 3 letters?

#### What’s the *fastest* way to solve this problem?

March 1, 2020What’s the *fastest* way to solve this problem?

#### Test 5 Section 4 #37 and 38

March 1, 2020Can you please explain College Board Test 5 Section 4 #37 and 38? They all use one table.

#### M and N represent digits in the two decimals listed above…

February 29, 2020O.M 0.N5

24. M and N represent digits in the two decimals

listed above. One of the decimals is equivalent

to 1/4 and the other is equivalent to 1/2. What

is the sum of M and N?

(A) 2

(B) 3

(C) 5

(D) 6

(E) 7

#### Renting video games from The Video Vendor costs $6 per game with no annual membership fee…

February 25, 2020Renting video games from The Video Vendor costs

$6 per game with no annual membership fee. Renting

video games from The Game Garage costs $3 per

game, but a customer must pay an additional $60 for

an annual membership. If n represents the number of

video games a customer rents in a year, which of the

following gives all values of n for which it costs less

to rent from The Game Garage than from The Video

Vendor?

#### I’m having problems with question #2 P.284

February 25, 2020I’m having problems with question #2 P.284

and I’ve checked the solution on page 349 but I still don’t get it

HELP PLEASE 🙁

#### at 7am a sewage treatment tank contains 3000000 gallons of water…

February 23, 2020at 7am a sewage treatment tank contains 3000000 gallons of water. starting at 7am, x gallons per minute flow into the tank, and y gallons per minute flow out of the tank. no water enters or leaves the tank otherwise. which of the following functions f models the number of gallons of water in the sewage treatment plant at 8am?