An electronic repair shop offers three types of service: on-site at-store and by mail. On site service costs 3 times as much as at-store service. By mail service costs $10 less than at store service. Last week the shop completed 15 services on site, 40 services at store and 5 services by mail for total sales of $2650. PART A: define variables for each service

PART B: write systems of equations for the services

PART C: Determine the cost of one on site repair service (SHOW ALL YOUR WORK)

Click on the graphic until you find the right quotient. (36xa - 30xb) ÷ (-6x2)

What are the solutions of the equation? 6x^2 + 11x + 4 = 0 a. 4/3, 1/2 b. -4/3, -1/2 c. 4/3, -1/2 d. -4/3, 1/2

In new york city at the spring equinox there are 12 hours 8 minutes of daylight. the longest and shortest days of the year very by two hours and 53 minutes from the equinox in this year the equinox falls on march 21 in this task you use trigonometric function to model the hours of daylight hours on certain days of the year in new york city a.what is the independent and dependent variables? b.find the amplitude and the period of the function. c.create a trigonometric function that describes the hours of sunlight for each day of the year. d. graph the function you build in part c. e. use the function you build in part c to find out how many fewer daylight hours february 10 will have than march 21. you may look at the calendar.