Two boys can paint a fence in 7 hours. Two girls can paint the same fence in 5 hours. In the unlikely event that they can work at the same pace together, how long would the four people working together take to paint the same fence? (Round your answer to the nearest tenth.)

what is the answer?

its the second choice.

step-by-step explanation:

the elements in the range will be 7 less than the elements in the domain.

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.