During the summer, Matthew and Devin starting their own business movie mowing lawns for people in the lake section. Before starting any work, Matthew spends $15 to fill up the gas tank for the lawnmower. The boys agree that each person will earn the same amount after Matthew is reimbursed the money he spent for gas. After a week of work, the boys earn a total of $243. Matthew filled the tank just once. How much did each boy earn.

a. Draw a bar model to represent the situation.

b. Write an equation to represent the situation

c. Use the mode to solve the problem.

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

What is the rate of change of a line that passes through (2,-5) and (6,-2)?

Which graph represents the function f(x)=4[x]?