I think all you have to do is add all the digits
Answer:
20
Step-by-step explanation:
7 hours to mow 4
7 x 5= 35
4 x 5=20
sea level is 0 and a deck is above water, so 10 and below sea level is where people scuba dive, so the dot at -15
2040. 10 times 4 is 40. If it happens every ten years then when the Olympics happen 10 times it would be 2040.
Answer:
The picture is a bit too blurry to understand, sorry.