The correct answer is c. work study
645+x >| 800 (the inequality)
800-645= 155
So, Micah needs to deposit at least $155.
(Btw >| is the greater than or equal to sign.)
Prime factorization can be obtained by the factor tree
72=2*36=2*(2*18)=2*(2*(2*9))=2*2*2*3*3=2^3*3^2
