Adam earns $75 per week mowing lawns. this can be represented by the function f(x) = 75x. each week he deposits this money into his bank account. at the beginning of january his bank account had a balance of $500 in it. adam also makes a $45 withdrawal each week. the withdrawals from his account can be represented by the function f(x) = 500 - 45x. write a function that can be used to represent his bank balance after n months, including his monthly deposit and withdrawal.

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain