What is the volume of a cylinder that is 11 mi tall and 40 mi tall

Simplify this expression.2(10) + 2(x – 4) a. 2x + 16 b. x + 12 c. 2x + 12 d. x + 16

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)