In this line of circles
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the ratio of red circles to blue circles is 1 :3
How many more red circles would
need to be added to make the ratio of red to blue 3 : 1?

Why do interests rates on loans to be lower in a weak economy than in a strong one

Suppose sat writing scores are normally distributed with a mean of 497 and a standard deviation of 109. a university plans to award scholarships to students whose scores are in the top 2%. what is the minimum score required for the scholarship? round your answer to the nearest whole number, if necessary.

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?