If c is equal to the sum of a and twice b, which of the following is the average (arithmetic mean) of a and c? A. c
B. a+b
C. a
D. b
E. a+c

Data are collected to see how many ice-cream cones are sold at a ballpark in a week. day 1 is sunday and day 7 is the following saturday. use the data from the table to create a scatter plot.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.

A50% increase followed by 33 1/2% decrease