A 45mm line is drawn on a drawing which represents the 1st-floor plan of an office building.  If the scale of the drawing is 1:50 what is the length that this line represents i for the office building?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?