Which coordintae grid shows the correct locations of P (1, 2.5), point Q, which is a reflection of point P accross the y-axis, and R (2, -2.5)

In a school 2/3 of the students study a language of those who study a language 2/5 study french

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

The ratio of men to women working for a company is 4 to 5 . if there are 90 women working for the company, what is the total number of employees?