Worth 99 points if you answer all!

question 5(multiple choice worth 1 points)
(06.04 mc)

what is the value of fraction 1 over 3x3 + 5.2y when x = 3 and y = 2?

a. 13.4
b. 16.4
c. 19.4
d. 28.4
question 6(multiple choice worth 1 points)
(06.01 mc)

what is the value of the expression 9 − (fraction 1 over 2)4 ⋅ 48?

a. 1
b. 3
c. 6
d. 9
question 7(multiple choice worth 1 points)
(06.02 lc)

which statement best describes the expression 2y ÷ 7?

a. 2 times y divided by 7
b. 7 divided by 2 times y
c. 7 times y divided by 2
d. 2 divided by 7 times y
question 8(multiple choice worth 1 points)
(06.02 mc)

which of these is the algebraic expression for "4 less than the product of 5 and some number? "

a. 5 − 4p
b. 4 − 5p
c. 5p − 4
d. 4p − 5
question 9(multiple choice worth 1 points)
(06.06 mc)

the work of a student to find the dimensions of a rectangle of area 8 + 16x and width 4 is shown below:

a. step 1: 8 + 16x
b. step 2: 4(4) + 4(12x)
c. step 3: 4(4 + 12x)
d. step 4: dimensions of the rectangle are 4 and 4 + 12x

in which step did the student first make an error and what is the correct step?

a. step 3; 4 + (4 + 12x)
b. step 3; 4 + (4 ⋅ 12x)
c. step 2; 4(2) + 4(4x)
d. step 2; 4(2) + 4x(2)