exam Maths Puzzle Numerical Ability

The total value of a house and a lot is $68,000. If the ratio of the value of the house to the value of the lot is 7 to 1, find the value of the house.

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exam Other Question

I need help with this innequality: 1/5 (one fifth)x + 1/2 (one half) is > 4/5 (four fifths) I need help trying to solve this problem.
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12+x-x^2 x^2-9

Sure hope I did this right. This problem cam from the 10th Edition of Introductory to Algebra by Mar