exam Maths Puzzle Numerical Ability

Could you help me with this problem?

write an equation for each line. Then graph the line.
through (-7,10) and horizontal.

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exam Other Question

When 29,500 is divided by an integer N, the quotient is 123 and the remainder is 17. Find N.

I have tried to get the answer and can't figure it out. Please help. Thanks a lot. A circular pond 26 yd in diameter is surrounded by a gravel path 2 yd wide. The path is to be replaced by a brick walk costing $50 per square yard. How much will the walk cost?