Which symbolic mapping statement correctly describes a reflection across the line y=x? A. (x, y)↦(−x, y)
B. (x, y)↦(x,−y)
C. (x, y)↦(y, x)
D. (x, y)↦(−x,−y)

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Taylor wants to paint his rectangular deck that is 41 feet long and 24 feet wide. a gallon of paint covers about 350 square feet. how many gallons of paint will taylor need to cover the entire deck? round your answers to two decimal places when necessary.