Kim read b books last month. This month she read 18 books. Which expression shows the total number of books Kim has read in the past two months?
A.
b - 18
B.
b + 18
C.
b × 18
D.
b ÷ 18

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.