You mow the lawn to earn your allowance. Each time you mow the lawn you earn \$12dollar sign, 12. Write an equation for the number of dollars, ddd, you earn when you mow the lawn mmm times.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

The pyraminx is a rubik's cube-type toy in the shape of a tetrahedron. the pyraminx shown below has edges 15\,\text{cm}15cm long and vertical height h=12.2\,\text{cm}h=12.2cm. the triangle drawn with dashed lines is a right triangle. what is the distance rr? round your answer to the nearest tenth.