Agas station sells gasoline for $4.10 per gallon elizabeth has a discount card for each gallon of gas that she buys she gets $0.30 off the regular price how much does it cost elizabeth to buy 9.8 gallons of gasoline, what is the number sentence?

Answer question above and explain each step : )

Aline has a slope of and a y-intercept of –2. what is the x-intercept of the line?

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