The sum of three numbers is 105 . the third number is 3 times the first. the second number is 5 more than the first. what are the numbers?

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.

Which of the following vectors are orthogonal to (2,1)? check all that apply

Can someone me find the original price? the discount is 5% and the sale price is $68.40