Raquel works in a pet store every day after school and sometimes on weekends. She earns $5.20 per hour. If Raquel works 21 hours a week, use front-end estimation to find out about how much she will earn in four weeks. A. $360 B. $400 C. $480 D. $520

Pham can work as many or as few hours as she wants at the university bookstore for $9 per hour. But due to her hectic schedule, she has just 15 hours per week that she can spend working either at the bookstore or at other potential jobs. One potential job, at a café, will pay her $12 per hour for up to 6 hours per week. She has another job offer at a garage that will pay her $10 an hour for up to 5 hours per week. And she has a potential job at a daycare centre that will pay her $8.50 per hour for as many hours as she can work. If her goal is to maximize the amount of money she can make each week, how many hours will she work at the bookstore?  hours

Beth earns a salary of $9.10$⁢9.10 per hour at the cafeteria, for which she is paid monthly. Occasionally, Beth has to work overtime (time more than 3030 hours but less than 6565 hours). For working overtime, she is paid time-and-a-half. Beth's salary is given by the functionS(t)=9.1t273+27.32(t−30)if0<t≤30if30<t≤65𝑆(𝑡)={9.1𝑡if0<𝑡≤30273+27.32(𝑡−30)if30<𝑡≤65where t is the time in hours, 0<t≤650<𝑡≤65.Step 2 of 3 :  Find limt→30+S(t)lim𝑡→30+⁡𝑆(𝑡).

Iris Souza started the summer with $30. She took $10 and made signs for her dog walking service. She posted the signs all over her neighborhood. She used the other $20 to buy a stout leash and a pooper-scooper. At the end of the summer, after buying herself a new pair of shoes for $50 (she had worn her other shoes out walking dogs), she had $125 left. Calculate Souza's costs for her summer job?Group of answer choices$30$50$80$125$175

Asha works in a café.Her wage is calculated using the formula wage = hourly rate # number of hours + bonus.Her hourly rate is $11.52 .One week Asha works 25 hours and receives a bonus of $5.40 .Work out her wage for this week

Rita earns 44 dollars each week working part-time at a bookstore. She earns one additional dollar for each book that she sells.Let A be the amount (in dollars) that Rita earns in a week if she sells B books.Write an equation relating A to B. Then use this equation to find the amount of money Rita earns if she sells 25 books.