What percent of all computers sold during the entire week were sold on Friday?

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

Solve the x in the equation x^2+14x+17=-96

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?