Jessa ordered 3 times as many hamburgers as cheeseburgers, and four more orders of french fries than cheeseburgers. There were a total of 49 items in his order. How many hamburgers did Jessa order?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

Sara made $253 for 11 hours of work. at the same rate how much would he make for 7 hours of work?