Allison wants to buy a skirt that has a regular price of $30. • The skirt is on sale for 1/5 off the regular price.
Allison has a coupon that will take 1/10 off the sale price.
• There is no sales tax on clothing.

If Allison pays with a $50 bill, how much change will she receive?
(Note: Express the answer as dollars. cents.)

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.

What number is 7 units left of -15?

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)