The cost of an annual tuition at a university increased from 10,500 to 11,300 what is the percent increase in tuition to the nearest tenth of a percent

Precalculus question, image attached.

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.