The current price of gas is $2.22 per gallon. Write a linear equation slope intercept form representing the cost of gas, c, for g gallons of gas. If Jeremy spent $35.52 last time he filled his tank up, how many gallons of gas did he put in his vehicle?

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z