Which of the following expresses 12 + 42 by using the GCF of the two numbers? 3(9 + 14)

3(4 + 38)

6(2 + 7)

6(6 + 36)

Simplify the following expression 48^1/2

What integer is equivalent to 9 3/2

Summary statistics given for independent simple random samples from two populations. use the pooled t-interval procedure to obtain specified confidence interval. x1=71.6, s1=3.9, n1=11, x2=67.9, s2=3.4, n2=9 determine a 99% confidence level.