Write the following series in sigma notation.
7+11+15+19+23

What is the value of x in the equation 6(x + 1) – 5x = 8 + 2(x – 1)?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2