Michael and his wife are each starting a saving plan. Michael will initially set aside $75 and then add $50.85 every week to the savings. The amount A (in dollars) saved this way is given by the function =A+7550.85N, where N is the number of weeks he has been saving.
His wife will not set an initial amount aside but will add $65.95 to the savings every week. The amount B (in dollars) saved using this plan is given by the function =B65.95N.

Let T be total amount (in dollars) saved using both plans combined. Write an equation relating T to N. Simplify your answer as much as possible.

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec