In last year’s graduating class, there were 30 more boys than girls. there were a total of 180 graduates. how many boys are in the class? how many girls are in the class?

subtract the difference first:

180-30 =150

 divide that by 2 = 150/2 =75

 so there were 75 girls

and 75+30 = 105 boys

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.