Twenty times the square of a non-zero number is equal to 15 times the number. what is the number?

What is the rate for one gallon of gasoline

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Which linear function represents the line given by the point-slope equation y + 1 = –3(x – 5)?