Which of these are measures of central tendency that can be found for this list of heights recorded in the high-jump event at a track meet? check all that apply.4' 9", 5' 3", 5' 4", 5' 7'', 5' 3", 5' 9", 6' 0", 5' 4", 6' 0", 6' 1", 5' 7", 5' 5", 4' 5"

a. mean
b. median
c. mode
d. range
e. standard deviation

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality