You are feeling impulsive, so you are going to have the owner of the pet store randomly pick a fish for your aquarium at home.

1. A tank at the pet store contains $9$ spotted guppies, $14$ red barbs, $10$ red tetras, and $7$ golden platys. What is the probability (expressed as a percent) of getting a red fish from this tank?

   Hint (a):

   How many red fish are in the tank? How many total fish are in the tank?

   Step (a):

   $\frac{14+10}{9+14+10+7}$

2. In a different tank that contains only golden platys, the probability of getting a female fish is $30\%$. If there are $18$ female fish in the tank, how many total fish are in the tank?

   Hint (b):

   If $x$ = number of total fish in the tank

   $\frac{18}{x}=\frac{30}{100}$