1. Graph the function and identify the domain and range. y=-5x^2 oo=infinite A) Domain: (-oo, oo) Range: [0, oo)
B) Domain: (-oo, oo) Range: (-oo, 0]
C) Domain: (-oo, oo) Range: (-oo, 0]
D) Domain: (-oo, oo) Range: [0, oo)

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

so, converting firstly the mixed fractions to improper fractions and then "adding".

c

step-by-step explanation:

i think the amount would be $140.62