Jonny sees freddy selling his lemonade and decides he wants to sell muffins he promises to pay his mother $10 to make muffins for him and sell them after selling 45 muffins he made a profit of $5.75 make an equation for his profit

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

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.

Which of the following would be a reasonable estimate for the weight of a pencil? a. 1 × 10^-20 lb b. 1 × 10^20 lb c. 1 × 10^2 lb d. 1 × 10^-2 lb