Use the domain theory to explain the difference between magnetic and non- magnetic materials​

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

no. dot product   =0 when vecs at right angles

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form