To get ready for a new school year, meg 3 pens for $.79 each ,2notebooks for$1.29 each ,and 4 folders for $1.15 each. sales tax for all of the items was $.38 .how many change will meg get back from a$20?

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

Write the expression as a single natural logarithm. 2 in a - 4 in y

Charlie tosses five coins.what is the probability that all five coins will land tails up.