If the circumference is 16pi then what is the area

Correct definition of algebraic expression

At the movie theatre, child admission is $5.10 and adult admission is $9.00. On Thursday, four times as many adult tickets as child tickets were sold, for a total sales of $1397.40. How many child tickets were sold that day?

Nguyen jogged 2/3 mile in 1/12 hour. What was his speed in miles per hour?

Choose all that are correct given the equation (equation: y=1/4x+9) answer choices: y=7.25 when x = -7 y=7 when x=-8 y=8.5 when x=-4 y=10.25 when x = 5

A dog groomer could clean 9 dogs in a hour. How many could they clean in 4/6 of an hour?

Function notation (2)

Is (2, 5) a solution to this system of equations? x + 2y = 12 2x + 2y = 14 yes or no

Given the system of linear equations. Choose all of the options that could be used to solve the system using addition x + y = 7 2x + y= Multiply the first equation by - 1 and add the equations together.

A father is 60 years old and his son is half his age. how old was the boy when his father was four times his age?

Solve 24x+2y=48 for y