Slope, points, write answers to all

Super ultra mega important if you can answer this correctly i will give you 100 points but if you don't answer it correctly you'll get a big report. so stay aware and have a nice day!

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.