there are 12 books stacked on a shelf. the thickness of each
book is either 2 or 3 inches. the height of the stack of books is
35 inches. which system of equations can be used to determine
x, the number of 2 inch books and y, the number of 3 inch
books?
a) x+y=12
b) x+y=12
2x+3y=35
3x+2y=35
c) x+y=35
2x+3y=12
d)
x+y=35
3x+2y=12
© amazing mathematics

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.

If the perimeter of the garden is 37 ft. the width is x and the length is 15 ft. what is the width of the garden in feet?