Solve this system of linear equations. separate the x- and y- with a comma 2x=-78-20y
-x=-51-20y

What is the equation of the graph that represents f(x)=x^4 stretched vertically by 2 and shifted up 3 spaces

George has seven boxes of five pencils. giulio three boxes of eight pencils. one of the boys arranges all his pencils equally into two groups. was this george or giulio how many are in each group explain

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