Ellen has music practice three days a week. she practices for all of the three days 85% of the time, two days 8% of the time, one day 4% of the time, and no days 3% of the time. one week is selected at random. what values does x take on? (enter your answers as a comma-separated list.)

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.