Which of the following is the most appropriate unit to describe the time you can drive a car based on the amount of gas

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start