Devonte opens a savings account by making a deposit of $249.45. every week, he deposits another $31.75 in the account. which expression shows the amount of money that will be in the account x weeks after the account is opened?

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.