peggy practices her gymnastics routine for a total of 21 hours. each practice session is 1 3/4 hours. how many practice sessions does Peggy have.

Write a rule in words and as an algebraic expression to model the relationship in each table The local video store charges a monthy membership fee of $5 and $2.25 per video. Video (v) l cost (c) 1 l $7.25 2 l $9.50 3 l $11.75

Solve the system of equations by substitution. 4x-3y=18 x+2y=-1

A number cube us rolled 450 times. The number 3 comes up 67 times. (a) What is the theoretical probability of rolling a 3? Write your answer as a fraction in simplest form.

I am operations that undo each other like multiplication and divison

A flower garden has 12 sunflowers for every 45 irises. Write another ratio with the same constant of proportionality. Explain how you found this ratio.

Fill in the missing terms of the following sequence 12,_,_, - 3, _, - 13

Factor out coefficient of 3/8d+3/4

Terrance trains at a rate of 6 miles every half hour and Jesse trains at a rate of 2 miles every 15 minutes

Find the magnitude of the vector from the origin to (8. - 6) and write the vector as the sum of unit vectors. 1. 12, 87 + 67 c. 12. 87-67

Evaluate the following expression b=3 c=-3 (b-c) (c+2)