I think it would have to be 1.46.
Explanation: if you subtract 3.56 from 2.1 you’ll get 1.46
She says 35 because number 7 in line says 31, so 31+4=35...
I hope this helped you!
Answer:
3.8 is the answer to your problem. Happy Holidays!
They are all larger than 90 degrees, and in a triangle they would all be obtuse angles.
Well, their speeds are (

is Jack's speed, and

is Richard's.

They, together, can paint 12 houses in 35 days. To get a single house, we only have to calculate

which is very close to 3 (a bit below)