Comparing 3 fractions 3/8 4/5 1/2

I don't really need the answer I'd really appreciate an explanation of how to compare 3 fractions with different denominators though, thank you

Find the solutions for a triangle with a =16, c =12, and b = 63º

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?