Answer:

Step-by-step explanation:
The compound interest formula is given by:

Where A(t) is the amount of money in the account after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per unit t and t is the number of years the money is invested or borrowed for.
For this problem, we have that:

The investment is compounded monthly. There are 12 months in a year. So 
The interest rate is 3%. So
.
So
The amount of money in her account after t years is:



Answer:
13.89 to 2 dec places.
Step-by-step explanation:
a7 / a5 = r^2 where r is the common ratio.
So 3/5 = r^2
r^2 = 0.6
r = +√0.6
r = 0.7746.
The first term is a5 / r^4
= 5 / (0.7746)^4
= 13.89.
Answer:
Point Q is incorrect
Step-by-step explanation:
all you have to do is solve the fractions and plot the answers -9/2 = -4.5 and is graphed at -3.5
20/21 is the answer to your problem.