Answer:
1.17
Step-by-step explanation:
5-(2.18+1.65)
2(5a+6b)
687
....
It would be 6 and 1 cause:
6 × 1 = 6
6 + 1 = 7
Hope that helps :D
i uploaded a vid on this here
https://www.you tube.com/watch?v=dQw4w9WgXcQ
its actually c tho..