Find an expression which represents the difference when (4x - 5y) is subtracted from (-10x - y) in simplest terms.

If a is a nonzero real number then the reciprocal of a is

On the day a coffee shop first opened, it had 140 customers. 65% of the customers ordered a large coffee. how many customers ordered a large coffee? enter your answer in the box.

The ideal weight of a nickel is 0.176 ounce. to check that there are 40 nickels in a roll, a bank weighs the roll and allows for an error of 0.015 ounce in total weight