Suppose 4 of the 12 types of tools are different types of screwdrivers. If 3 tools are selected at random, what is the probability that they are all screwdrivers? Explain.

if you mean

then it's c. 8, -7/3

but if you mean

then it is

2,600 divided by 80 = 32.5

step-by-step explanation:

horizontal translation of 2 units in the positive x direction

followed by

vertical translation of 3 units in the positive y direction