The simple interest on an investment of $4000 for one year is $140.
what is the interest rate?
a.
0.035%
b.
3.5%
c.
35%
d.
350%

This is obviously B, you can get the answer through guess and check with a calculator or just take everything out that makes no sense at all like D and A and then figure out your final answer with the last 2 that make sense

2.4+3.2t. you get the answer by adding the ones with variables and ones without