1.
Which of the following is equivalent to the expression 3x?
Select all that apply.
a. The product of 3 and x
b. 3 times x
c. 3 more than x
d. 3 less than x
2.
At the local movie theater, adult tickets cost $9 and children’s tickets cost $5. What would be the best choices for variable(s) when writing an equation for the cost of attending the movies?
a. t would represent the number of tickets
b. x would represent the number of adult tickets, and y would represent the number of children’s tickets
c. a would represent the number of adult tickets, and c would represent the number of children’s tickets
d. c would represent the cost of both tickets
3.
When budgeting for a semester at a college, the cost for each credit hour is $250 and the cost for each textbook is $120. What would be the best choices for variable(s) when writing an equation for the total cost of the courses?
a. c would represent the number of credit hours, and t would represent the number of textbooks
b. x would represent the number of credit hours, and y would represent the number of textbooks
c. c would represent the number of classes
d. t would represent the total number of classes and textbooks