Adult tickets for the movie theater cost $9. Child tickets cost $5.25. Write an expression for the total cost of a group of adults and children going to the movies. Use “a” for adults, and “c” for children.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.