Answer:
x = -12
Step-by-step explanation:
Step 1: Subtract 2x from both sides
2x + 10 = -14
Step 2: Subtract 10 from both sides
2x = -24
Step 3: Divide both sides by 2
315
Area = Length x Width
Area = 21 x 15
Area = 315
C
i think it is 451 i believe
I believe the answer is 32 models of 100