15. Most banks compound interest more than once a year. When interest is compounded n times per year for t years at an interest rate of r, the principal, P, grows to the amount A given by the formula: A = P(1 +3nt
a.) Brian received $250 for his high school graduation gift. He wants to invest it in a savings account compounded
monthly with a 7.3% interest rate for four years. What is the balance of his account after four years?

- 70

this is the answer for you hope it

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.