Brand w: 500 napkins for $2.87

brand x: 200 napkins for $1.27

brand y: 100 napkins for $0.62

brand z: 250 napkins for $1.37

a. which brand is the cheapest? what is the cost of one napkin of this brand?

b. which brand is the most expensive? what is the cost of one napkin of this brand?

explain.

Aregression was run to determine if there is a relationship between hours of tv watched per day (x) and number of situps a person can do (y). the results of the regression were: y=ax+b a=-0.662 b=30.418 r2=0.703921 r=-0.839

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.

#1-20 state whether the angles are alternate interior, alternate exterior, vertical, or corresponding angles.