David will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $55 and costs an additional $0.11 per mile driven. The second plan has an initial fee of $48 and costs an additional $0.13 per mile driven. For what amount of driving do the two plans cost the same? E miles What is the cost when the two plans cost the same?​

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