On your ninth birthday, you received $300 which you invested at 4.5 percent interest, compounded annually. your investment is now worth $756. how old are you today?

30 years

Step-by-step explanation:

On your ninth birthday, you received $300 which you invested at 4.5 percent interest, compounded annually.

Principal amount is $300

rate of interest is 4.5%

your investment is now worth $756. So amount after t year is $756

We use compound interest formula

A is the final amount

P is principal amount

r is the rate of interest 0.045

t is the number of years

Plug in the values in the formula

Divide both sides by 300

Take ln on both sides

Divide both sides by ln(0.045)

t= 20.99= 21 years

9 years + 21 years = 30 years

She is 30 years old now

black/brown

step-by-step explanation:

well, you see here, jamal was born to 2 parents, his mother who he lives with and his father who left at a young age and who happens to be younger than him. he stole cookies because he has to steal food due to the fact that he spends his government poverty checks on pot and women.

x/3-10=8

x/3=18

x=48