Pedro cut a sheet of poster board into 10 equal parts. His brother used some of the poster board and now 7/10 is left. Pedro wants to make a sign from each remaining part of the poster board. How many signs can he make?

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?