A chef is estimating the cost to prepare a fixed-price menu for x guests. The anticipated cost of the
appetizers is
a(x) = 3.25x, the anticipated cost for the main course is
m(x) = 5.25x, and the anticipated cost for the dessert
course is d(x) = 1.25x.
If the functions are combined so that
c(x) = a(x) + m(x) + d(x), then the function c(x) includes
the point (40,)

HURRY TIMED

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

it’s the first one your welcome