Last week a certain brand of bottled water cost $1.25 for a 16 oz bottle this week the water is on sale for $1 for a 16-oz bottle what is the percent increase in the price of this bottled water A. 16 percent
B. 20 percent
C. 13 percent
D. 25 percent

Does the problem involve permutations or? combinations? do not solve. the matching section of an exam has 4 questions and 7 possible answers. in how many different ways can a student answer the 4 ? questions, if none of the answer choices can be? repeated?

Which translation maps the vertex of the graph of the function f(x) = x2 onto the vertex of the function g(x) = x2 – 10x +2?

If a is a nonzero real number then the reciprocal of a is