You answer 12 out of 20 problems correct on your homework. what percent did you answer correct? what percent did you answer incorrect?

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.

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?