The circumference of a circle with a radius of 1 is 2π. set up a proportion to find the circumference of a circle with a radius of 6.

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet