Which expression is a trinomial? a. x + y – 13 b. 4xyz c. 4x^3 d. x^3 - 3x^2 + 7x + 5 i think it's a. but i'm not sure.

Can (3,5 and square root 34) be sides on a right triangle?

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?