In the equation 2x + 7 = 21, what is the value of x?
A.7 B.9 C.11 D.14

It takes a total of 6 hours to fill up an inground backyard pool using a standard house. a function can represent this situation to represent the amount of water in the pool until it is full a function of time the hose is running. determine the domain for the function

How to use order of operation in 20 divide by 4 multiply 5 = 1

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20