To find a shoe size, the manufacturer uses the equation S=3f-22
,
where S represents the shoe size and f represents the heel-to-toe length of the foot, in inches. Which of the following is the same equation solved for f in terms of S?

f=3 /S+22

f=S22/3
f=S/3+22
f=S+22 /3

D. f=S+22 /3

Step-by-step explanation:

S= 3fs-22

3f/3=S+22/3

f= S+22/3

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40