Simplify the following expressions (4-16) - (2-V-25)

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?

Usan threw a softball 42 yards on her first try and 5112 yards on her second try. how much farther did she throw the softball on her second try than her first? express your answer in feet and inches. 9 ft 12 in. 28 ft 12 in. 28 ft 6 in.

If a=0.333333 and b=0.55555, what is the value of a+b