Suppose you have $140 in a bank account. You start saving $5 per week. Your friend has $30 in his bank account and saves $10 per week. After how many weeks will you and your friend have the same amount of money?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality

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?