20x+5y=40 solve for x

Is - 4/5 greater than equivalent or less than to - 5/4

I saw guitarist received a royalty payment of 9% based on the sales of her CD. If she received a check for $5238, what were the total sales of her CD?

Branson and his sister beatrice combined their allow of 7$ each, so they could buy a movie for 12$. They bought 1$ containers of fruit salad with the remaining money and split the m containers evenly between them.

Jack has an average score of 72% on five quizzes. What must he score on the sixth quiz to have an average of 78%?

C=11.304 m, r. C is circumference and R is radius

Is it true that a plane consists of an infinite set of lines?

Sebastian and teshawn go to the movies. the tickets cost $16 in total. the boys share the cost equally. how much does tedrawn pay?

It takes 3 buckets of water to fill one third of a fish tank how many buckets are needed to fill whole tank

Which is the same function as - 2x - 3 = y? A) f (x) = - 2x-3 B) f (-2x) = - 3 C) f (-3) = - 2x D) f (x) = - 2-3

The surface area of the square pyramid is 16 square inches. Find the value of x. With a base of 2 inches.