If the \(4\) numbers \[14, a, 28 , b\] form an arithmetic progression, what is sum of \( a \) and \( b?\)
An arithmetic progression has first term \(a_{1} = 2\) and common difference \(d = 6\). What is the 5th term of the progression, \(a_{5}\)?
Suppose that when you are a teenager, your height increases at a steady rate of 3 inches every year. If your present height is 48 inches, then how many years will you take to grow to 66 inches tall?
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