A garden is surrounded by a fence that is 16 feet in length and 12 feet in width. There is a diagonal walkway from one corner of the garden to the opposite corner. What is the length of the walkway? I'm really bad at word problems

Astudent received the following grades last semester. find the student's semester grade point average. an a is algebra (3 credits), a b in history ( 3 credits), a in sociology ( 3 credits) a d in english ( 3credits) and a c in seminar ( 2credits). an a is worth 4 points, a b is worth 3 points a c is worth 2 points and a d is worth 1 point.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)