Suppose we are interested in the effect of education on salary as expressed in the following model. Salary₁ = Bo + B₁ Education, + €₁ For this problem, we are going to assume that the true model is Salary; = 12,000 + 1,000 Education, + €¡ The model indicates that the salary for each person is $12,000 plus $1,000

Questions 11-17. The environment club has saved 200 pounds of cans and promises to collect 20 pounds of cans each week and will use the profits to buy additional recycling bins. Create a linear model for their collection program. When will the club have 320 pounds of cans?

This is a two part question. Collin has a small business selling hotdogs at tennis matches. He purchases all of the materials to make each hotdog for $2.60 and has fixed costs at each match of $10. Collin sells each hotdog to customers for $3.60. At most he can produce 42 hotdogs at a match. (1) Draw a complete break-even chart of Collin's hotdog business. Your picture should have a dot on the break-even point and lines for total revenue, total cost, and fixed cost. y, Revenue/Cost ($) 150 140 130 120 110 100 90 80 70 60 50- 40 30- 20 10 24 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 x, Units

4. 9 An ice cream shop sells small and large sundaes. One day, 30 small sundaes and 50 large sundaes were sold for $420. Another day, 15 small sundaes and 35 large sundaes were sold for $270. Sales tax is included in all prices. If x is the cost of a small sundae and y is the cost of a large sundae, write a system of equations to represent this situation. Peyton thinks that small sundaes cost $2.75 and large sundaes cost $6.75. Is Peyton correct? Justify your answer. Using your equations, determine algebraically the cost of one small sundae and the cost of one large sundae.