16 Steve drove from his home to his friend's house.
He stayed at his friend's house and then drove home.
Here is Steve's travel graph.
30
20
Distance from
home (km)
10
1400
1430
1200 12 30 1300 1330
Time of day
(a) For how many minutes did Steve stay at his friend's house?
minutes
(1)
(b) What was Steve's average speed on his journey home?
km/h
(2)
2001 methodmaths

Asales representative from a local radio station is trying to convince the owner of a small fitness club to advertise on her station. the representative says that if the owner begins advertising on the station today, the club's total number of members will grow exponentially each month. she uses the given expression to model the number of club members, in hundreds, after advertising for t months.