How to solve 30 - [ 2 +3 (8/2)]

Let the closed interval [a , b] be the domain of function f. the domain of f(x - 3) is given by (a) the open interval (a , b) (b) the closed interval [a , b] (c) the closed interval [a - 3 , b - 3] (d) the closed interval [a + 3 , b + 3]

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points