On this math the average cost per once for glass cleaner is 7.7 cents with a standard deviation of 2.5 cent. what is the z-score of glass cleaner with a cost of 10.1 cents per ounce a: 0.96 b: 1.31 c: 1.94 d: 4.04 e: none of the above

What are the solutions of the following system? y=-2x^2 y=x-2

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work

The equations 2x-5y = -5 11x-5y = 15 9x+ 5y = 5 and 14x+ 5y = -5 are shown on the graph below. which system of equations has a solution of approximately (-0.6. 0.8)?