18. A man buys two tables for Rs 900. He sells one at a loss of 10% and the other at a gain of 2% On the whole transaction he neither gains nor loses. Find the cost price of each table.

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

d. you cannot tell because there are no values shown.

her total is 2

  -3+5=2