Do these ratios form a proportion? 10
10. 20 large glasses : 12 small glasses
15 large glasses : 9 small glasses
11. 14 bills : 12 coins
7 bills : 6 coins
12. 9 milligrams : 12 months
13 milligrams : 15 months
13. 2 pințs every 9 weeks
4 pints every 18 weeks

Question and answers are in the attached picture. you so much in advance.

Solve with work adding cheese to a mcdonalds quarter pounder increases the fat content from 21g to 30g. what is the percent of change ?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?