book Maths Puzzle Numerical Ability

The Slope of a line through the point (1,3) is 1.5. If the point (-3,y) lies on the line, find the value of y.

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Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coin does she have? hi i'm having trouble with these questions...actually with this whole subject in general

Identify the vertex of the parabola:

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