Simplify -sin^2x-cos^2x-tan^2x+cot^2x+sec^2x -csc^2x+2

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

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 $s$?