What is the solution to the system of equations? use the substitution method. {y=−2x+53x−4y=2

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

Draw a tape diagram to represent each situation.for some of the situations,you need to decide what to represent with a variable andre bakes 9 pans of brownies.he donates 7 pans to the school bake sale and keeps the rest to divide equally among his class of 30 students