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)
The answer would be 3.4
Hope that helped : )
-1
29
-46
-46
27
-28
13
-1
-16
38
15
86
-63
-20
-17
-60
87
-36
-16
-42
18
-9
-63
-49
22
-15
-20
-74
27
53
Goes by row, up to down
Answer:
35/8
Step-by-step explanation:
4×8= 32 plus the 3/8 equals 35/8
hope it helps
The candle would be 5 inches after 4 hours
3/4 x 4 = 3