If a researcher watches 1-week-old babies and records how many times they open and close their eyes while lying in their cribs, he is most likely using

(note i put the graph in so plz )the graph shows the amount of water that remains in a barrel after it begins to leak. the variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. what is the slope of the line

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

If f(x)=x+7 and g(x)=1/x what is (fog)(x)