7. Write the equation of a line in the form y = mx + b that passes through the point (3,6) and PLEASE HELP

8. In 2009, U. S. families, on average, spent $541.25 on back-to-school supplies. In 2016,
the figure rose to $681.25.

a. Find a linear model in the form, y = mx + b, that fits this data using x=0 to stand for
the year 2000.

b. Use your model or perhaps another algebraic idea to predict the back-to-school cost in
the year 2025

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?

15 liters is approximately how many gallons