Engineers use math because they have to calculate numbers together to know how much angle they will need when building and when they need to know how much wood/tools they need they have to use math to get those things.
I think the answer is acid rain ig
Answer: x + 7/2
Explanation:
1/2(2x + 7) = x + 7/2
Given
Find out the what was the insurance company's payment .
To proof
As given
Sally Jones pays $50.00 a month for group health insurance
There is a $300 deductible
Her medical bills for the last year were $2,600.00
Linda's insurance company provided payment of 80% of the bills less the deductible.
Deductible
The amount of money you will pay in an insurance claim before the insurance company starts paying you.
medical bill reducing the deductible = $2,600 - $300
= $2300
80 % is written in the decimal form

= 0.8
than the equation becomes
Linda's insurance company provided payment = 0.8× 2300
= $1840
Therefore the the insurance company's payment be $1840 .
Hence proved