Which rotation will carry a regular pentagon onto itself? A.
216o

B.
120o

C.
50o

D.
60O

896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631

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

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out