During summer vacation you charge people $8 per hour for swimming lessons and a $ 20 register fee if make $52 one day how much hours did you spend teaching lessons?

Solve the following inequalities and show the solution on a number line. 3/4 (2x-7) ≤ 5

Find the perimeter of the triangle with vertices  d(3, 4),  e(8, 7), and  f(5, 9). do not round before calculating the perimeter. after calculating the perimeter, round your answer to the nearest tenth.  

The hockey team has been great! in 2008, they won 20% more games than in 2007 in 2009 they won 50% more games than in 2008 what was their overall percentage increase from 2007 through2008?