The ticket booth collects $127.50. adult tickets cost $12, and children's tickets cost $7.50. if 14 tickets are sold, how many of each ticket were purchased?

Which of the following expressions are equivalent ?

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Astudent has created the give circuit diagram. it consists of a battery, a resistor, and a light bulb. in one minute, 1.2c of charge flows through the resistor. how much charge flows through the light bulb in one minute?