Answer:
Step-by-step explanation:
Given the function f(m)=20-0.25m to represent the amount of money f(m) she has left after talking m minutes, the zero of the equation can be gotten by setting f(m) to 0
f(m)=20-0.25m
0 =20-0.25m
-20 = -0.25m
m = -20/-0.25
m = 80
Hence Trudy will have talked for 80minutes if she has no money left
I drew this by hand. sorry I it does not help.
Answer:
B.) 140 is your answer for your problem
1000m equals 1km so 600m equals 0.6km.
Taking over his thoughts is the answer
