An equation is shown below: 5(2x - 8) + 15 = -15

Write the steps you will use to solve the equation and explain each step.

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Please explain, I don't understand. Here is my answer, please let me know if it's correct:
5 x 2x = 10

5 x 8 = 40

10 - 40 + 15 = -15

10 - 55 = -15

-45 = -15

Find the total area for the regular pyramid ( follow the answer set up in the picture)

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

Harry the hook has 7 1/3 pounds of cookie dough.she uses 3/5 of it to bake cookie. how much cookie dough does she use to make cookie?