Susan makes a purchase of $175 and is charged 7.75% for sales tax. what is the total cost of the purchase if susan charges it on a credit card with a daily interest rate of 0.039% and pays the balance off at the end of 30 days?
a. $176.17
b. $186.70
c. $190.77
d. $200.26

The axis of symmetry for the graph of the function f(x)=1/4^2+bx +10 is x=6. what is the value of b?

Find the value of the variable and the length of each secant segment.

Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.