I need help with some grade 10 math something to do with graphing

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

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 5 x + y = 7 {} 1 solution infinite