Yesterday 5% of the 120 sixth graders at school were late. How many sixth graders were late?

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

Bob is putting books on a shelf and takes a break after filling 18 1/2 inches on the book shelf. the book shelf is now 2/3 full. how long is the entire bookshelf?