The ratio of girls to boys in a particular classroom is 8: 7. How many boys are in the class if there are 45 students?

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i