Which if the following is a biconditional of this statement below All pentagons have 5 side
a. a polygon is a pentagon if and only if it has 5 sides
b. If and only if a polygen has 5 sides then it is a pentagon
c. if a polygon has 5 side then it is a pentagon
d. a hexagon has 5 sides

About 9% of th population is hopelessly romantic. if 2 people are randomly selected from the population, what is the probability that at least 1 person is hopelessly romantic?

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

An octagonal prism has jow many lateral faces?