Condense the expression using the properties of logarithms

Please help. I'm taking a quiz rn-

What is the first step of an indirect proof of a number that is divisible by two

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

Aplane intersects a pris paralel to the base of the prism. the cross section is a polygon wth eight sides. how many sides does the base of the prism have? a. 10 b. 8 c. 7 d. 9