Marco deposited $500 in a savings account earning 4% interest over 5 years.

what was the total amount of interest earned at the end of 5 years?

a.
$40

b.
$50

c.
$100

d.
$200

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip

Which expression shows the sum of the polynomials with like terms grouped together