Wilson has a balance of $890 on a credit card with an apr of 18.7%, compounded monthly. about how much will he save in interest over the course of a year if he transfers his balance to a credit card with an apr of 12.5%, compounded monthly? (assume that wilson will make no payments or new purchases during the year, and ignore any possible late-payment fees.)
a.$117.85
b.$181.46
c.$299.31
d.$63.61

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