Apiece of cardboard is 3 centimeters longer than it is tall. the area of the piece is cardboard is 10 square centimeters. how many centimeters tall is the piece of cardboard.

Afootball is throw by a quarterback to a receiver

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

Paul can type 60 words per minute and jennifer can type 80 words per minutes.how does paul's typing speed compare to jennifer's