Acar travels 18 miles per gallon of gas used which equation best represents the proportional relationship between the y miles that the car has traveled and the x gallons of gasoline that it has used

The only way to identify an intercept is as an ordered pair. true false

4+(2+x) can you me solve this problem

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