Coach frizzle can walk 6 miles in 135 minutes
Marcia dissolved 1 kg of salt in 3 litres of water.
Bobby dissolves 2 pounds of salt in 7 pints of water
2.11 pints = 1 litre
7 pints = 7/2.11
= 3.32 litre
1 pound =0.45 kg
2 pound = o.45*2 kg
= 0.9 kg
So we find that Bobby is dissolving 0.9kg of salt in 3.32 litre of water
Marcia is dissolving 1 kg of salt in 3 litres of water.
So it can be said that Marcia made a more concentrated salt solution.
Subtract (10 into fifths) from (20 divided into half)
= (20 divided into half) - (10 divided into fifths)
=(20/2) - (10/5)
If you need to solve the expression:
=10-2
=8
Hopes this helps :)
D is the answer...........