exam Maths Puzzle Numerical Ability

Solve this inequality: x + 8 > 20 Note there is a line under the greater than sign

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exam Other Question

The sum of two numbers is 31. Their difference is 9. What are the two numbers? I need help with this homework: use transformations on the graph of y=x^2 to graph y=(x+3)-3. I do not understand any of the problems related to this in this in the lecture notes.