What are the coordinates of a(-4,-1) b(-2,0) c(1,-2) after a reflection across ths x-axis

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

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin