Investments historically have doubled every 9 years. if you start with a $2000 investment how much money would you have after 54 years

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2