Prove the sum of the coefficients of the binomial theorem is equal to 2^n

You are painting the outside of a 28 foot fence that goes around a square that there are four equal sections you have painted 1) 2 of one section what fraction of the job have you completed

50 m x 120 m park consists of a rectangular lawn surrounded by a path of uniform width. Find the dimensions of the lawn if it's area is the same as the area of the path

A chemistry teacher needs to mix a 30% salt solution with a 70% salt solution to make 20 qt of a 40% salt solution. How many quarts of each solution should the teacher mix to get the desired result?

Smith sold 45 of his DVDs and purchased 10 more. If Smith has 15 DVDs now, how many DVDs did he have to begin with?

Chloe is painting a stretched canvas that has an area of 108 square inches the length of the canvas is 12 inches

What is 3/4 as a decimal

Since circles don't have sides, what ratio (s) could you use to prove that all circles are similar?

What is 1 3/20 as a decimal

Max said that he and Gwen cannot equally share $7.80 because 6 one dollars bills cannot be divided into two groups. is Max correct

Rick is thinking about expanding the size of the patio in his backyard. currently it is 14 feet long and 9 feet wide. what will the perimeter of the new patio be if rick adds 4 feet to the diimension