6 out of 18 kids said hello to Mr. Koller this morning. What percent of kids said hello to Mr. Koller?

Step-by-step explanation:

Simplify 6/18 = 3/9 = 1/3

To turn a percentage into a fraction multiply it by 100.

1/3 * 100 = 33.33333333...(3 goes on forever)  percent

Micah bought 11 gallons of gas in the first week and 8 gallons of gas in the second week

Step-by-step explanation:

Let x be the number of gallons Micah bought the first week. In the second week, he bought 3 fewer gallons of gas than the first week, so he bought x-3 gallons in the second week.

In the first week, he bought x gallons of gas at $2.39 per gallon and paid $2.39x. In the second week, he bought x-3 gallons of gas at $2.49 per gallon and paid $2.49(x-3). This month, he has spent a total $46.21 on gas.

Hence,