Answer:
90 Minutes
Step-by-step explanation:
If he took 27 minutes to do 30% of his homework, then we can reverse the operation to find the total amount
30% is the same as 0.3, therefore you divide 27 by 0.3 because the 100% is 1, so by dividing you'll get the 100%.
It is B. the differences are added together
Just add the two fractions together 1/4 + 7/4 and you will get 2 so it would be 2 pounds all together
