If the cost of 10 pencils is $52 1/2 find the cost of 1 pencil

What is the 9th term in the geometric sequence described by this explicit formula? an=-6. (2)(n-1) apex

The radius of a sphere is 3 inches. which represents the volume of the sphere?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14