8) The volume of a pyramid with a square base is given by the formula 213VL H, where = length of the side of the base and H= height of the pyramid. a) Solve the formula for height, H.b) Use the new version of the formula to find the height if the volume of the pyramid is 320 cubic meters and its base length is 8 meters.L

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9) Marguerite inherited $95,000 and invested part of it in her retirement account and donated the rest to a local soup kitchen. The amount of the investment was $2000 less than four times the amount of the donation. How much did Marguerite invest in her retirement account and how much did she donate to the soup kitchen? Write an equation to solve this problem, show all work, and include units in your answer.

Math 009 Quiz 3Page 610) The original price of a computer was $1632, but Edgar bought it on sale for $1142.40. What was the percentage discount? Write an equation to solve this problem, show all work, and include units in your answer.

End of quiz: please do not forget to write and sign (or type) the required statement explained in the box on page 1 of the quiz.