Which equation below and solution for x does the model represent? A) 2x + 2x = 85, x=42.50

B) 4 + x = 85, x=21.00

C) x + x + x = 85, x=21.00

D) 4x = 85, x=21.25

Option D

Step-by-step explanation:

Cost of 4 shirts all together = $85

Model given in the picture attached will be,

x + x + x + x = 85

4x = 85

x = 21.25

Therefore, Option D will be the correct option.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared