Write an expression for each quantity
28) the number of days in w weeks
30) number of pounds in z ounces
32) the number of feet in i inches

Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.

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.

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab