The point q(9, -1) is reflected across the y axis. use arrow notation to describe the original point and its reflection

a) q(9, -1) -> q'(9,1)
b) q(9, -1) -> q(-9, 1)
c) q(9 -1) -> q(-9, -1)
d) q(9 -1) -> q(9, -1)

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

A. dividing 99 by 204 will tell you that 99 out of 204 of the people were females at the action movie.