Cody is selling popcorn for his scout troop. he has to raise $350. so far he has $284. how much more does cosy need to raise to meet his goal? write and solve an equation to find the answer.

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

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?