Answer:
just turn the percentage into a decimal then you multiply or add
if she has 9, add 7. you have 16. divide it by half, 8. subtract 3 and you get 5.
Answer:
simple interest: $3330
compound interest: $6339.08
Step-by-step explanation:
You said that 'A is 30' right there in the equation
so it would be
Xsquared=30