P,Q,R can't be 0, because their product is nonzero. Either of S and T could be 0, but the third one only works if S is 0.
2.25X5= 11.25
2 1/4 turns into 2.25 as a decimal, and a pentagon has 5 equal sides, so you take 2.25 and multiply it by 5 to get your answer
11.25ft
Last one is your answer
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You put it over it’s number place so since .5 is in the tenths place you put it over 10
So it would be 2 5/10 after simplifying you get 2 1/2
