Find x if CM =2x-6 and CR=x+5

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?