Answer:
24
Step-by-step explanation:
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24÷2=12
12+7=19
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I think its 6 cm for the 3rd side
A graph of a proportional relationship is a straight line that passes through the origin. The constant of a proportionality in a graph of a proportional relationship is the constant ratio of y to x (the slope of the line).
one of them is A but from how you showed me I dont really understand what you put