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

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Abox of chocolates costs $7. which equation relates the number of boxes sold (x) and total cost of the boxes sold (y)?