Which expression is equivalent to (3a)^-2
1/9a^2
1/3a^2
3/a^2
9/a^2

$35.59 in pounds

step-by-step explanation:

it would be:

c.parallelogram.

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

or