What is the inverse of f(x) = -10x - 2

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

What is the the greatest common factor ?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f