20×30would equal600.All you have to do is take the two cerca out of the way. Then you multiply2×3and you get6. Then you add the two ceros and get 600. Ex.: 20×30:20- 0=2+30- 3=2×3=6+00=600 tadah
Do 1/2 x 1/10 which equals 10/2. 10/2 is 5 gallons if u divide 10 divided by 2. So the unit rate is 5 gallons per minute. Also can u mark me as brainlist
