Help with part b pls thank u

see below

Step-by-step explanation:

Let t = time (in hours)

a) i)  First 105 km of journey

ii) Rest of journey

distance = 190 - 105 = 85 km

speed = km/h

b)  3 hours 15 minutes = 3.25 hours

 total time =

multiply by 4:

c)

(to 2 decimal places)

d) time ≥ 0, therefore, x = 53.68 only

Substitute x = 53.68 into the expression for and solve for :

true? is that what you're asking or do you mean something else?

step-by-step explanation:

3024 rhe base is what up in worry about