Ascience fair poster is a rectangle3 feet long and 2 feet wide. what is the area of the poster in square inches?

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]

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

I’m stuck on this equation, anyone got the answer?