Meg has 7 over 8 jug of orange juice. How many 1 over 2 jug servings can Meg get from that jug?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Sonia works at a sporting goods store. she earns $415 per week plus a 5.25% commission on her sales. one week, her sales are $2,200. what is her total income for the week?

How to square the standard deviation? how do you get the bottom number so you can actually square it? for instance, 22/6 squared is 1.91, where did they get the 6 from?