Answer:
The annual interest rate is $70
Step-by-step explanation:
If you divide 210 by 3 yrs you get 70 so they are making $70 a year off that investment.
When you multiply numbers with exponents, you would add the exponents.
(-3)^3 * (-3)^1 = (-3)^4
Solution: A
%/100 = is / of
7 is what percent of 30
is = 7
of = 30
% = x
now sub into the formula
x/100 = 7/30
cross multiply
(30)(x) = (7)(100)
30x = 700
x = 700/30
x = 23 1/3% or 23.33%