To solve this problem we can use equation. If we say that x is number of Sams pencils we can say too that Sari has 3x (because she has 3 times more) And we know that together they has 28 pencils. x+3x=28 4x=28 /:4 (divide both sides by 4) x=7 Sam has 7 pencils. We know that Sari has 3 times more so 7*3=21 -its the result.
1.33 equals one mile and 24 centimeters. Also 18 miles is the actual distance. I hope this helped but i was a little confused but i am pretty sure the answers are right