Answer:
<h3>81.</h3>
Step-by-step explanation:
**Whenever you see a variable and a coefficient together, multiply them.**



I would pick 750 - 250 because that equals 500. You can also prefer using 800 - 250.
Answer: 720
Step-by-step explanation: to solve this problem, we do 15*8*12= 1440
this shape is half of that though, so we do 1440/2= 720, so the answer is 720
0 because 0 times anything is 0