<human>:  Barbara has 9 stuffed animals. Trish has two times as many stuffed animals as Barbara. They planned to sell their stuffed animals and donate all the money to their class funds. Barbara will sell her stuffed animals for $2 each while Trish will sell them for $1.50 each. How much money will they donate to their class funds?
<bot>: How much money will Barbara sell her stuffed animals for? ** Barbara will be able to sell all her stuffed animals for 9 x $2 = $<<9*2=18>>18.
How many stuffed animals does Trish have? ** Trish has 9 x 2 = <<9*2=18>>18 stuffed animals.
How much money will Trish sell her stuffed animals for? ** Trish will be able to sell all her stuffed animals for 18 x $1.50 = $<<18*1.5=27>>27.
How much money will they donate to their class funds? ** Therefore, they will donate a total of $18 + $27 = $<<18+27=45>>45 to their class funds.
#### 45