What is the measure of angle a

a). 93°
b). 113°
c). 138°
d). 180°

What is the 12th term of b(n)=-4-2(n-1)

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%

Solve this problem! extra ! 3025/5.5 = a/90.75