1. when jack and jill work together, they can carry a cooler of water up a hill in 12 hours. when jill works alone it takes her 7 fewer hours than when jack works alone. how long would it take jack, working alone, to carry a cooler of water up a hill? Step by step please! ):

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Since opening night, attendance at play a has increased steadily, while attendance at play b first rose and then fell. equations modeling the daily attendance y at each play are shown below, where x is the number of days since opening night. on what day(s) was the attendance the same at both plays? what was the attendance? play a: y = 8x + 191 play b: y = -x^2 + 26x + 126 a. the attendance was never the same at both plays. b. the attendance was the same on day 5. the attendance was 231 at both plays on that day. c. the attendance was the same on day 13. the attendance was 295 at both plays on that day. d. the attendance was the same on days 5 and 13. the attendance at both plays on those days was 231 and 295 respectively.

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10