#### Answer

a) $\frac{33}{50}$ have a reservation
b) 17 do not have a reservation
c) $\frac{17}{50}$ do not have a reservation

#### Work Step by Step

a) $\frac{part}{whole} \Rightarrow \frac{33}{50}$
b) $50-33=17$
c)$\frac{part}{whole} \Rightarrow \frac{17}{50}$