If point A{-1, -1) is rotated 180 about the origin, what will be its new position?°a. (1, 1) b. (-1, -1) c. (1, -1) d. (1, -1)

1. are the triangles similar and if so why? what is the value of x? show your work.

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Parabolas y=−2x^2 and y=2x^2+k intersect at points a and b that are in the third and the fourth quadrants respectively. find k if length of the segment ab is 5.