FUNCTIONS AND MATHEMATICAL MODEL

1. what is the range of f(x)=(x+2)^2-3
a. All real numbers greater than of equal to 3
b. All real numbers greater than of equal to 2
c. All real numbers greater than of equal to -3
d. All real numbers greater than of equal to -2
e. All real numbers greater than of equal to -1

is the right answer a?

2. f(x) = 3x^2-7 and f(x) = 2x^3-4x+2, g(f(2)) ---->>>> no typographical error, it is really g(f(2))
my answers are: g(5) and g(10). i just evaluated x=2. is it correct?

(no choices given)

3. Carolyn works at an accounting firm. Her starting salary was $1000 per week. She received a 7% raise each year. At this raise increase, what will her weekly salary be, rounded to the nearest dollar, after 10 years?

no choices given :(