Bob makes mixture of 4/7 of plant food for every gallon of water. if he uses 10 1/2 gallons of water, what is the total amount of plant food needed

This is a ratio problem

4/7/1 gal = x/10.5 gal

4/7 x 10.5 = 6

1x = 6

so x is 6

$18 was the price of the t-shirt

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.