Which phrase describes an unknown or changeable quantity? a. 60 seconds multiplied by 5
b. 3 dollars and 76 cents
c. 2 times the number of pages in a book
d. 15 years of schooling

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?

In the diagram, gef and hef are congruent. what is the value of x

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.