We can see that the line is horizontal so its slope is 0.
I'd do a little more than 77minutes for the 6and 7for if you could have it on 77and but you could have it in your head
6 holes in 24 mins.
1 hole in 4 mins.
54 × 4= 216
41 × 4= 164
216-164= 52
So it would take 52 more minutes.
Simply add -560 and -750 (remember same sides add and keep, different signs subtract) you should get -1310
