Convert 150 meters per second into miles per day

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

What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Which of the following are arithmetic sequences? check all that apply. a. 0.3, 0.6, 0.9, 1.2, 1.5, b. 2, 3, 6, 11, 18, c. 150, 147, 144, 142, d. 2, 4, 9, 16, 25,