Change 20 degrees Celsius to degrees Fahrenheit. (Use F = 9/5 + 32)

Can someone answer this question for me

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

If you measured the width of a window in inches and then in feet with measurement would you have the greater number of units