Dan says that d = 4t represents his walk, where d is the distance walked in miles and t is time. Explain why d=4t relates the distance Diego walked to the time it took.

What are “like terms”? why can we only add like terms?

Which simplifys to a+ b? a-(1-b)+1 -(1-a)-b+1 (a--1) -1)+1

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?