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× 3.2. Help me please

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

What is the number 321,000,000 in scientific notation? also what is the number? ?

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points