Brian has a circular-shaped swimming pool that has a radius of 13 feet. brian wants to install tile around the pool and needs to calculate the circumference of the pool. approximate the circumference of brian’s pool to the nearest whole unit. include all of your calculations in your final answer.

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

What are the measures of angles a, b, and c? show your work and explain your answers. 25 points