Approximately 4/5 of u. s. homeowners have a cellphone. what percent of homeowners do not have a cellphone

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

What is the prime factorization of 23 ?me with this question

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?