6th grade-write an inequality to represent the situation: the temperature stayed above -15 degrees. guys!

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?

Write the equation of the circle centered at (10,-2) with radius 2.

P= price tax is 4% added to the price. which expression shows the total price including tax?