If you decide to study 3 hours more a week for 30 weeks with the expectation of getting a $3,000 scholarship to college, how much is your
study time worth per hour?
(Please round to the nearest penny.)

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

Ming says that 0.24 > 1/4 because 0.24= 2/4. which best explains mings error

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?