the height h in meters above the ground of a football t seconds after it is thrown can be modeled by the function h(t)= -4.9t^2 + 19.6 + 2. determine how long the football will be in the air to the nearest tenth of a second

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

How many solutions does the nonlinear system of equations graphed bellow have?

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.