Practice Test 6, number 17, no calc.

Test 6 #20 from the no calculator section

Can you do Test 5 number 19 from the no calculator section?

Test 3 Section 3 #17 (grid-in) please

Please explain #13, test 1, Section 3.

if 0 x y and x/y=r which of the following must be equal to x+y/x

(A) 1 over (r + 1)

(B) r over (r + 1)

(C) (r +1) over (r minus 1)

(D) (r + 1) over r

(E) r plus 1

can you please explain how the answer is D.

If x/y=2 and z/x=4, what is the value of x+y+z/x?

A 4 1/2

B 5

C 5 1/2

D 6

E 7

Henry used 2/3 of the length of a board to make a box and 1/4 of the original length of the board to repair a step. The remaining piece of the board was 2 feet long. How many feet long was the original board?