That is all the information given.

lla) [5] A salesperson at this company made $510,000 of sales, was promoted, and works an additional 2.5 hours per week. What is their predicted income? Round your answer to the nearest $1,000 11b) [5] What is the predicted effect on their sales of a salesperson working three fewer hours per week than they did last year? A sales manager looks at the following data of sales people sales Change in hours worked per week since last year +3 +100 +60 Sales made last year promoted last year? (in thousands of $) 600 yes 420 no 590 no 390 no 475 500 530 no 480 +35 700 480 625 370 490 550 Yes + 50 tis 545 no 500 + 20 [questions on the next page] lla) [5] A salesperson at this company made $510,000 of sales, was promoted, and works an additional 2.5 hours per week. What is their predicted income? Round your answer to the nearest $1,000 11b) [5] What is the predicted effect on their sales of a salesperson working three fewer hours per week than they did last year? A sales manager looks at the following data of sales people sales Change in hours worked per week since last year +3 +100 +60 Sales made last year promoted last year? (in thousands of $) 600 yes 420 no 590 no 390 no 475 500 530 no 480 +35 700 480 625 370 490 550 Yes + 50 tis 545 no 500 + 20 [questions on the next page]