Using the breaking apart method, what us the best way to multiply 8 by 7

Football player weighed 170 2/3 pounds in may. during the summer he gained 25 5/12 pounds. during the first week of fall practice he lost 10 1/4 pounds and during the second week he lost another 3 1/2 ponds. how much does he weigh at this point? a.182 1/3ib b.181 1/2ib c.182 5/12ib d.183 2/3ib

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?