Which of the following choices is the variance of the sample shown here? 30, 32, 47, 57, 66,79
A. 19.2
B. 205.5
C. 17.6
D. 371.8
E. 309.2

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?