Sheldon bought a $20 book at a 35% discount. He wrote the expression 20−0.35(20)to find the discounted price. Which expression is equivalent to discounted price Sheldon paid?

Suppose you are analyzing the relationship between time and distance given in a table,and there are 4 values for each quantity.you divide distance 2 minus distance 1 by time 2 minus time 1.you then divide distance 4 minus distance 3 by time 4 minus time 3 and get a different answer.what can you say about the relationship?