Can someone please help me I will mark u brilliant for both answers

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

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Me. i can't figure out this question. give an explanation too. .