Tom bought a pen for $60 and sold it to gain 20% on his cost price. How much money did he gain? a) $12
b) $40
c) $72
d) $80

if you explain the the question more correctly i might be able to answer this better

step-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

a is 8.b is 10.c is 10.5. d is -.5

step-by-step explanation:

just minus the smallest number from the biggest.