Mr. broun paid $3.30 in tax on a $55 motel bill. what percent of $55 was the tax?

In the triangles, bc =de and ac fe.if the mzc is greater than the mze, then ab isdfelth

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)