exam
Maths Puzzle
Numerical Ability
(m-1/n-4)3
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y=2x +3x-4
vertex;
axis of symmentery:
direction of opening:
graph;
A car traveled for 1/2 hour at r mi/h, then increased the speed by 10 mi/h and traveled for 1 1/2 hours more. How far did the car go? (Express the answer in terms of r)