exam
Maths Puzzle
Numerical Ability
Find the amount of the investment:
$480 invested at 12% compounded quarterly after a period of 7 years
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exam Other Question
Equal amounts are invested at 6%, 7%, and 8% annual interest. If the three investments yield a total of $2,037 annual interest, find the total investment.
Solve the following equation for x:
3^2^x =15
not sure how to solve this. Ive been looking for examples but have had no luck on it.
Thank you in advance for your help!