3. Four friends lose their jobs and start a lawn mowing and trimming business. It takes all four of them four days to do four lawns. a. How long does it take one of them to do one lawn?

Terry registers for a career tech class at a local education centre. She is one of 6 high school students from local schools. The highschool students make up one fifth of the class. The class also has 12 high-school graduates who now seek a marketable skill. The remaining students lost their jobs, and want to change their career direction. Which statement is not correct? High-school students: \( 20 \% \) High-school graduates: \( 40 \% \) Remaining students: \( 40 \% \) Number of remaining students: 15

2. Elton works at a specialty bookstore in town. He earns \( \$ 12,300 \) a year. There is a job opening at the bookstore downtown. The salary is \( \$ 14,500 \). He writes an expression to find out the percent increase in salary. Is his expression correct? If not, correct it, and compute the answer.

Complete the following parts without a calculator. a) \( 7-1.43 \) is the same as \( \square-1.42 \). b) \( 22 \times 5 \) is the same as \( \square \times 10 \). c) If I am given \( 22 \times 38=836 \), that means \( 23 \times 38=\square \). d) Given \( 3623-3207=416 \), we know that \( 3614-\square=416 \). e) \( 19 \times 12 \) is the same as \( 20 \times 12-\square \).

2. After school, students run a carpentry shop. The students charge \( \$ 7 \) per hour. The average job takes 2 students each working 6 hours. Sometimes they work on Saturdays. Then they charge \( \$ 30 \) more for the average job. How much more per hour is the rate on Saturdays? Complete the steps. Find the answer. Cost of average job during the week Cost of average job on Saturdays Rate that students charge on Saturdays Increase in hourly rate on Saturdays

The company that Marty works for cuts back \( 25 \% \) of its workforce. As part of this, Marty loses his job. So he claims unemployment benefits. He learns that he will receive \( 42 \% \) of his salary. Marty currently earns \( \$ 24,600 \) a year. What will he receive per week while unemployed?