Ming-li spent $15 at the movies. she than earned $30 babysitting. she spent $12 at the bookstore. she now has $18 left. how much money did ming-li have to began with

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?

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Drag statements and reasons to each row to show why the slope of the line between d and e is the same as the slope between e and f, given that triangles a and b are similar.