Please help me due today

You paid 28.00 for 8 gallons of gasoline. how much would you pay for 15 gallons of gasoline?

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2x−2 intersect are the solutions of the equation 4x = 2x−2. (4 points) part b: make tables to find the solution to 4x = 2x−2. take the integer values of x between −3 and 3. (4 points) part c: how can you solve the equation 4x = 2x−2 graphically? (2 points)