I need help on my math hw

for future students the answer is b

hope i

-lavira: )

< 4 = < 5 they are vertical angles

120 degrees

answer: $53750

steps:

list the principal and interest after the n-th year:

n       principal   simple interest

1     12500     375

2     25000     750

3     37500     1125

4     50000     1500

sum: $50000     $3750

total at end of year 4: $53750

the answer is d d.

surface area: 4,644,025 pi

volume: 1,667,978,979 pi