If f(x) = x - 4, then (fof)(3) = =
a. 1
b. -1
c. -5
d. 5

After two years, how much has been paid into interest?

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b