For the fourth-grade classes, Jessa needs 3 classes * 30 cupcakes/class = <<3*30=90>>90 cupcakes

Adding the cupcakes for the P.E.

class 50, she needs to make a total of 90 cupcakes + 50 cupcakes = <<90+50=140>>140 cupcakes

# Answer

140
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Jessa needs to make cupcakes for 3 fourth-grade classes that each have 30 students and a P.E. class with 50 students. How many cupcakes does she need to make?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
140
Jessa needs to make cupcakes for 3 fourth-grade classes that each have 30 students and a P.E. class with 50 students. How many cupcakes does she need to make?
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