Of the four expressions presented here, which two are equivalent? Expression I: 19n Expression II: 4n + 9 + n + 5n Expression III: 10n + 9 Expression IV: 9n + 9 I and II II and III I and III II and IV

Write the sentence as an equation. b increased by 281 is d

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.

2x + 3y = 17 5x + 6y = 32 usibg method if elimination