PLS HELP IT IS WORTH 15 POINTS A musician is saving money to buy a new snare drum. The musician puts $100 in a savings account that pays 3% annual interest compounded yearly.
a. Write a function that models the amount of money in the account overtime.
b. Graph the function.
c. The musician wants a drum that costs $149.95. Will there be enough in the account after 3 years? Explain.

In the surface area formula for cylinders which expressionrepresents the lateral area

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Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.