It depends on how many options you have
You multiply the total number of books you have time 5 because you can choose 5
Sally paints at a rate of 1/7th room / hour
Steve paints at a rate of 1/6th room / hour
If they both painted together, they would paint 1/7 + 1/6 = 13/42 room/hour
so to paint the whole room, it would take 1/(13/42) = 42/13 =
<u>
3.23 hours (3 significant figures)</u>
THEN, LENGTH OF THE HYPOTNUSE IS 5 FEET.
This is possible for a smaller watering can. 3 liters is about 3/4 of a gallon (imagine a jug of milk).
It is equivalent to 3000 ml, which would also be 100 ounces of water.(5 -20 oz bottles of water).
