Which ratios are proportional to 32 : 40?
choose all answers that are correct.
a.
4 : 5
b.
8 : 10
c.
96 : 120
d.
128 : 200

What is the most accurate measurement of 1 pound

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?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class