The formula A = P(1 + r) t represents the amount of money A in an account after t years, where P is the amount initially deposited and r is the interest rate. Patricia currently has $1839.79 in an account that has an interest rate of 2.5%. She opened the account 8 years ago and has made no additional deposits since then.a. Solve the formula for P and find the amount of Patricia's initial deposit.b. Nia says that for the formula in part a, A is always greater than P when r is positive and t is a positive integer. Do you agree? Why or why not?

You have not provided the ratio of red bricks to gray bricks.

Therefore, I'll just explain how to solve this problem in general with an assumption and you can apply this same method to the specific problem you have.

Assume:

The number of red bricks was 5 and the number of grey bricks were 2.

Step-by-step explanation:

This mean for every 5 red bricks we use 2 grey bricks

Thus for every bricks there are 5 red and 2 grey bricks

This gives us: red and grey bricks

Therefore, with 175 bricks used in all, we have:

175 × = = 125 red bricks and

175 × = = 50 grey bricks

Answer (with given assumption):

125 red bricks were used