Dalton used the Quantitative Reasoning Process to budget and to start a savings account. Each month he makes about $180 from a part-time job. Dalton's parents also send him $130 per month. The sum of Dalton's paycheck and the money he gets from his parents is 14% more than his total expenses. How much money does Dalton have available to add to his savings account each month? (Round your answer to the nearest cent.)

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?