Kay's coach put her on a 4 week training program. she must increase the distance she runs each week by 0.5 mile. if she runs 1.5 the first week, how far will she run the last week

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart