Last weeekend trisha and becca both went on a bike ride trisha biked 8 miles in two hours and becca biked 10 kilometers in 7800 seconds. who had the faster average speed

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?