Cassie’s math certificate is 17 centimeters tall and 29 cm wide. cassie wants to put the certificate in a fancy frame that cost $1.00 per centimeter. how much will it cost to frame cassie’s math certificate

Price of this math certificate=($100/ cm²) (area)

we have to compute the area of this math certificate:
area=tall x wide
area=17 cm * 29 cm=493 cm²

price of this math certificate=($1.00/cm²)(493 cm²)=$493

the math certificate´s cost would be $493

These are the multiples of 15 but what you are probably asking or what are the factors of 15