Which ordered pair is a solution of y = x + 4?

a (0,0)
b (5,54)
c (7,28)
d (9,13)

D (9,13)

Step-by-step explanation:

Substitute the points into the equation

y =x+4

A (0,0)

0=0+4

0=4  False  This point is not a solution

B (5,54)

54 = 4+4

54=8  False  This point is not a solution

C (7,28)

28 = 7+4

28 = 11  False  This point is not a solution

D (9,13)

13 = 9+4

13=13  True This point is a solution

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

b

step-by-step explanation: