Need answered***

choose the correct ratio for: 7 yards to 15 feet
(i know its not b)
a: 15/7
b: 7/15
c: 15/21
d: 21/15

choose the correct ratio for: 6 feet to 18 inches
(i know its not c)
a: 18/6
b: 72/18
c: 6/18
d: 18/72

its not b on the first or c on the second. i already tried and got them wrong but i have a retry.

21/15

72/18

Step-by-step explanation:

For the first one

you have to get rid of yards and feet so you would take

7yards/15feet and take it times 3feet/1yard, because there are 3feet in a yard and you are trying to get rid of the units, so by taking those times each other you get

21/15 and the units cross out

For the second one

you have to get rid of the feet and inches this time

6feet/18inches* 12inches/1foot

72/18 and again the units cross out

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b