A math class surveyed the recycling habits of each student’s family. Out of twenty-four families, eighteen recycle weekly and six never recycle. What is the ratio of families that recycle to total families?

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?