A=1/2 9+20×15
1/2. 29×15
217.5
The question is an illustration of multiplication model.
The multiplication model is: 
From the figure, the shaded portions are:


So, the multiplication model represents:

This gives

Express as decimal


Hence, the multiplication model is:

Read more about multiplication models at:
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Answer: I think that would be 5x3
Step-by-step explanation:
Answer:
area=56000 yards²
Step-by-step explanation:
first divide 280 by 7 and get 40
scale factor is 40
5x40=200
200x280=56000
area=56000 yards²
Half the cards are even, 70/2 = 35 even cards.
The probability of picking an even card = 35/70, which reduces to 1/2