Can someone please help me ASAP

i) 30 minutes

ii) 50 km/h

Step-by-step explanation:

Part 1:

1540 - 1600 is pnt 1 to pnt 2; 1 km per hour. (20 minutes)

15km at  90km/h = 10 min

20 + 10 = 30 minutes

Part 2:

10 km/h + 90 km/h = 100km/h

Average = /by number of factors;

100 km/h  / 2 = 50 km/h (Average journey speed)

f(x) is the value of the function. b is the value of the function when x equals zero or the y-coordinate of the point where the line crosses the y-axis in the coordinate plane.

step-by-step explanation:

hope this !

answer: about 22.67

step-by-step explanation: