Ivan buys 2 shirts for $12.40. Work out the cost of 6 shirts. *

6 shirts cost $37.20

Step-by-step explanation:

You first divide $12.40/2 to get the cost of a single shirt which is $6.20.  Then you multiply the cost for a single shirt by 6, to get the final answer of $37.20.

The volume of the rectangular prism is 1562.4 cm

Step-by-step explanation:

We are given the area of 173.6 cm and a height of 9 cm. We also know that the formula for area if lw, meaning we can substitute the area for lw in the volume formula. V= (173.6 cm) (9 cm) =1562.4 cm