$4.20 for 8 apples and $5.75 for 12 apples. which is the better buy?

Brent wants to know what is 5 x 1/2

The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Find the solution of this system of equation -7x+y=-20 9x-3y=36