Please answer these two question please please I need help

Step-by-step explanation:

10.

a. y=30x + 50

b. 30(2.5)+50= 125

c. y= 60x+100

d. 60(2.5)+100= 250

10)

a) y = 50+30x

b) y=50+30(2.5)

       50+75 = 125

c) y = 2(50+30x)

d) y=2(50+30(2.5))

       2(50+75)

       2(125) = 250

13)

a) P = 2 ( L + W )

        10x+2

b) A = W L

        5x+1

c) for A its 15x+3 and for B its 54 x 2 + 18 x

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !

10

step-by-step explanation: