30% of a number is 27. What is 50% of that same answer?

90, 45

Step-by-step explanation:

0.3x = 27

x = 90

50% of 90 = 45

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3