16. ALGEBRA The Trevor family pays its horne insurance premium quarterly. After the family made some improvements on the home, their
home insurance premium went up by $65.80 for the fourth quarter. If
the average quarterly home insurance premium after the increase was
$163.35, what was the quarterly premium before the increase?

but which class are u may know that first

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

its line 2 i just added the rest or else it wouldn't let me answer

i will u if u answer my question in math