Frequency histogram with the data of the table that is in the pic

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

Use the elimination method to find the solution to the system of equations. 2x - 3y = -9 -x + 3y = 6

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?