PLS HELP ANY ONE PLS. IT IS 40 POINTS WOW PLS HELP Bob travels a distance of 90 miles each year at a speed of 4.8 miles per hour. The function
d = 90 – 4.8t represents its distance d after t hours. Find the zero of the function

its only 20 dude

Step-by-step explanation:

18.75

Step-by-step explanation: if you divided 90 by 4.8 you get 18.75

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

a. is correct