6x - 8 = 4x + 4
4(x - 2) = 2(x + 3) + 7

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

Draw a scaled copy of the circle using a scale factor of 2

Identify the number 127 as a rational or irrational. explain