solve the system of equations given below. a. (-2,4) b. (2,1) c. (4,-2) d. (1,2) 8x+4y=16 7y=15-x

3(10x-y)-5(x-y^2) need this solved asap

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?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles