exam Maths Puzzle Numerical Ability

Find the slope of the line through the points (10, -7) and (-3, -2)

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exam Other Question

A concrete driveway measures 14 yards by 5 yards. The driveway will be 0.75 yards thick. (a) How many cubic yards of concrete will be needed? (b) How much will it cost if concrete is $4.75 per cubic yard? Write an equation in slope intercept form, y = mx + b, of the line that has a slope of -1/2,and contains the point,(8,1).