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?

What is the slope of the line shown below?

Justin has 750 more than eva and eva has 12 less than justin together they have a total of 63 how much money did

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.