When Lara was born, her mass was 3 kilograms. by the time she started third grade, she had gained 24 kilograms. what was Lara's mass at the beginning of third grade?

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