Which function has real zeros at x = 3 and x = 7? f(x) = x2 + 4x - 21
O f(x) = x2 - 4x – 21
Of(x) = x2 – 10x + 21
O f(x) = x2 – 10x - 21

Somone me i want to know what 18 hours out of 24 hours in a fraction

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.