Problem '1'. {repel Given that the marginal retrenue is R" = g = {I.2m + 5|], using methods from this Math 'i'l clan;1 nd the total change in revenue R when the number of units sold increased from 5 to 10. Show your wort:f including the formulas; concepts usedi. to receive credit. {Round your anSwer to two decimal places.) Problem 3. {mpg} The exponential density function for the lifetime of a computer component for I] E t a: co1 where t E the number oi'years is givenhy: t} = [Lie\"'1'. Find the probability that the lifetime of a given component will be liars than ii years1 using methods from this Math T1 class. Show your work; including the formulas used, to receive credit. [Round your answers to two decimal places.)