The ratio of male students to female students is 4 to 5. if there is a total of 6192 students, find the number of male syudents to the number of female students

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Which geometric principle is used to justify the construction below?

Kristen is wrapping presents for the holidays. she has a box that measures 4 ft. x 2 ft. x 2 ft. how many square feet of wrapping paper does she need to cover the box without overlapping?