Please help i will give the brainliest answer

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2