The cost of 4 books is $18.00 and the cost of 4 pens is $20.00. Find the cost of six similar books and six similar pens.

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

Bc and bd are opposite rays. all of the following are true except a)a,b,c,d are collinear b)a,b,c,d are coplanar c)bc=bd d)b is between c and d