Draw a rectangle that has a perimeter of 12 units and an area of 8 square units

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?