Harris is building a deck around his pool. his contractor charges $525 for labor plus an additional $4.75 per square foot for materials. which equation can be used to determine the cost, in dollars, for a deck with an area of x square feet? a) f(x) = 529.75x b) f(x) = 4.75x + 525 c) f(x) = 525x + 4.75 d) f(x) = 4.75x + 525x

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

~

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.