The student to teacher ratio is 15: 3. if there are 90 teachers at the school, how many students are there

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.