Help asap please, forgot how to do math :)

What is the slope of the line that contains the points (4,8) and (9,8)? what type of line is it?

Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.

What is the squate root of r^64 needa r^4 b r^8 c r^16 d r^32