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0.08 is 10 times greater than 0.008, becase 0.008 · 10 = 0.08
Here we have one large triangle with two smaller triangles drawn inside. The two smaller triangles are similar.
Thus, a/12 = 12/16, or a/12 = 3/4, or 4a=36, or a = 9.
Find b in the same way: b/20 = 9/12 (and so on).
Answer:
2x^2+8x+15
Step-by-step explanation:




A least common multiple should have all factors of the numbers, for which we want to know the least common multiple.
5 and 8 do not have common factors, so their common multiple is 5*8=40
Answer is 40.