book Maths Puzzle Numerical Ability

How do I graph -1 + 2X + b?

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which is an example of a proportion? 2/3, n=1/2, 2/5=a/15,or none of these? (thank you for the help!!!!!!!!!!!!) Question 1:
For #1 - 10, find the area and perimeter of rectangles with the given measurements. Use the common formulas, substitute, and solve.

39 mm wide, 2x mm long
perimete