Movie ticket sales : 6x + 9y = 1,500 suppose on this day all tickets were on sale for the child price of $6. how many tickets were sold?

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

If x is 6, then 7x= a. 13 b. 42 c. 42x d. 76