4a + 3b - a - 5b
First, gather the like terms.
Second, subtract 4a - a to get 3a.
Third, subtract 3b - 5b to get 2b.
Answer:
3a - 2b
62% because 200 silver coins out of 323 (total of all coins) is .619..., resulting in 62%
The amount if $2950 is invested at an annual rate of 8.4% compounded quarterly is $3486
<h3>
Compound interest</h3>
Compound interest is given by:
where t is the period, r is the rate, P is the initial amount, A is the final amount and n is the times compounded.
Given P = 2950, r = 0.084, n = 4, t = 2, hence:
The amount if $2950 is invested at an annual rate of 8.4% compounded quarterly is $3486
Find out more on Compound interest at: brainly.com/question/24924853
1. The sum of b and ninety-eight
