How much of an increase is $5000 to $6500 in percent

What is true about the dilation? it is a reduction with a scale factor between 0 and 1. it is a reduction with a scale factor greater than 1. it is an enlargement with a scale factor between 0 and 1. it is an enlargement with a scale factor greater than 1.

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

If the tip varies directly with the number of guest which equation represents between the tip,t, and the number of guest,g?