Uniform probability question-- it's ok to use R, but show work

5. Almost all random number generators begin with generating numbers from a uniform distribution then do a bunch of math to get the exact random numbers they want. If we draw from Unif(2,7)... a) what is the probability we obtain a value less than 3.3? b) what is the probability we obtain a value between 3.3 and 5.5? c) what is the probability we obtain exactly 6? d) what is the probability we obtain a value greater than 4.2, given our value is less than 5