My dad's old baseball card increased in value from $400 to $500. what was the percent increase?

Which math sentence can be used to determine if the triangle is a right triangle?

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

The cone in the diagram has the same height and base area as the prism. what is the ratio of the volume of the cone to the volume of the prism? h hl base area-b base area =b volume of cone_1 volume of prism 2 volume of cone 1 volume of prism 3 volume of cone 2 volume of prism 3 oc. od. volume of cone volume of prism e. volume of cone volume of prism 3 2