Perform the indicated operation (2x+y) (3x^2+y)

If you use the elimination method to solve the system of equations, 3x - 4y = 9 and 2x 3y = 7, which of the following would be the best method?

A rectangle has vertices at (1, 5), (4, 9), (1, 9), and (4, 5). What is the length of the longer side of the rectangle?

A grain of sand weighs approximately 0.011 grams. There are approximately 7.5 x 10^18 grains of sand in the world. Using scientific notation, calculate approximately how much all the grains of sand in the world weigh (in grams).

A subway inspector has a list of stations he is supposed to inspect that day. The list is shown below. The inspector has torn off the bottom of his schedule by mistake. How can he find out if he is supposed to inspect Station 33 today?

What value is a discontinuity of x squared plus 7 x plus 1, all over x squared plus 2 x minus 15?

A rectangle is 6 inches wide. It's length is 2 inches more than its width. What's the perimeter of the rectangle

What Is 56,127 minus 5,405

At a farmers' market, Frederick buys 4 pounds of apples and 15 pounds of cherries for $36.93. At the same farmers' market, Wilhelmina buys 12 pounds of apples and 9 pounds of cherries for $30.51.

What's 3 to the fourth power times 3 to the negative 7 power

I need to know what is 222+-87