What is the image of (7,3) after a dilation by a scale factor of 5 centered at the origin

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

Pls never taught i’m really confused and i rlly need

Ineed on this question me get the answer