Answer:
x = 8
Step-by-step explanation:
so 
rearrange the formula:






Answer:
216 spent on cakes
Step-by-step explanation:
12 times 18= 216
Answer:
6x-24
Step-by-step explanation:
First, we must add x-12 to 2x. We will get 3x-12. Now, to get the perimeter, we must multiply that expression by 2. The answer is 6x-24.