exam Maths Puzzle Numerical Ability

Find the slope and the y-intercept.
y = 4x - 3

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exam Other Question

SOLVE.

-4x >_ -0.8

These are just as confusing as the other ones I selected. This is the last one tho. Sorry but if someone can help with these please. the points A, P, Q, and B appear in this order on a line, so that AP:PQ = 2:3 and PQ:QB = 5:8. Find whole numbers trhat are proportional to AP:PQ:QB.