Please help thanks!!!

Answer:
a)12xy
b)30pqr
Step-by-step explanation:
This question is pretty simple you just need to multiply all the numbers together then add the letters at the back.
Answer:
Answers are below.
Step-by-step explanation:
a) 3x x 4y = 12xy
b) 2p x 3q x 5r = 30pqr
Hope this helps :)