Use the circle to answer the questions The diameter is (A. 3.1 B. 5.4 C. 10.8 D. 16.2) cm.

The circumference in terms of Pi is (A. 5.4 B. 3.18 C. 10.8 D. 16.2) pi cm

Using 3.14 for Pi, the approximate circumference of the circle is (A. 10.8 B. 16.9 C. 32.4 D. 33.9)

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

(60 points) explain this in detail

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.