exam Maths Puzzle Numerical Ability

What is the greatest number of intercepts in a circle?

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exam Other Question

You have $25,000 to invest. Part at a 14% interest rate and part at at 18% interest rate. What is the most you can invest at a 14%interest rate to yield at least $3600 return. Can someone help me solve this problem?

I need to solve and graph the solution set of the following inequalities:

3x > 3x - 4
__ (the line is under the > )

<_____________>
Thanks, Lyn