John went to a party at 5:00 and left at 8:00 how much minutes was he at the party

a hour is 60 minutes he was at the party for three hours so 60 times 3 = 180

for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

30 units^2

step-by-step explanation:

area is l × w

the length is 3

and the width is 10

3 × 10= 30 units squared