Find formulas for the functions f+g, f-g, and fg. Give the domain of each. f(x) = 7x, g(x) = x3
(f+9)(x) = 0
(Simplify your answer. Use integers or fractions for any numbers in the expression.)
(f-9)(x) =
(Simplify your answer. Use integers or fractions for any numbers in the expression.)
(f9)(x) =
(Simplify your answer. Use integers or fractions for any numbers in the expression.)
The domain for the functions f+g, f-g, and fg is
(Type your answer in interval notation.)

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.