Y =
81 is the same as 3 x 3 x 3 x 3. Therefore we can take out three of the four 3s and leave one inside the cube root radical.
The answer is c and e. To find the zeros of a function and they give you options like this, just plug them into the equation until they equal 0.
42 * 0.18 = $7.56
She gave the barbar $7.56 in tip