Brian has 17 fewer marbles than Kyle. Brian has
21 marbles. How many
marbles does Kyle have?

In the equations, a and b represent the price per night for a room in hotel a and hotel b, respectively, w weeks after september 1 last autumn. what was the price per night in hotel a when it was equal to the price per night in hotel b? a = 240 − 20w b = 320 − 30w

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

With finding limits of multi variable !