What is the equivalent decimal form of the rational number 9​

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

What is the perimeter of square abcd? units units 28 units 37 units

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?