How do I find the answer for 0.5n + 17 + n=20

Matt and Brian were solving a system of equations. They both noticed that the two lines had the same slope.

At the food star grocery store apples are 5 for $1.00. Bob brought 6 of them how much money did he spent

Write two word sentences for the equation r/0.2=40

I have 6 surfaces 2 of my surfaces are smaller then the others I can stand up tall what shape am I

Edward opened a bank account, he deposited $80 each month for 10 months, his bank charged him $4 each month to use the account. how much money is in Edward account after 10 months?

19.83 rounded to the nearest tenth

What is the optimal way to compute a1a2a3a4a5a6?

This is 10 degrees colder than 4°F.

Estimate. then, divide using the standard algorithm and check 45.15/21

Dwayne has $40 in a savings account that earns 5% annually. The interest is not compounded. How much will he have in 1 year?