Nita want to buy a new keyboard for her computer. she will buy the keyboard when it is on sale for under $50

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

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212

What expression is equivalent to (84+16)