Which equation represents a line which is perpendicular to the line y=-1/7x-3

Step-by-step explanation:

To be perpendicular m1(m2)=-1

-1m/7=-1

m=7

So the perpendicular line will have 7 as the linear coefficient

y=7x+b

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