Mrs. Kramer asked her students to list the age of their older siblings. The result are shown in the bar graph below. What percent of older siblings are under the age of 21?

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)