Evaluate each arithmetic series described. a1= 10 d= 8 n= 11

A) 1116
B) 1120
C) 550
D) 1118

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?