How do i solve c=2∏r for r?

Alya holds a pinwheel with eight distinct colors. As she holds the pinwheel, it twirls in the wind for a moment before stopping. She then records which color is at the top of the pinwheel.

Leala took five tests in science. Find her average score to the nearest tenth: 78, 92, 94, 97.5, and 83

Which is the formula for the volume of a sphere with diameter d? A. S = 4πd² B. S = πd² C. S = πd³ D. S = πd³

Evaluate the expression if a = 4, b = 7, and c = 9. what does ac + b =

lewis played 12 tournaments in 3 weeks if he keeps up this pace is how many weeks will he play 20 tournaments

The graph of g (x) is obtained by reflecting the graph of f (x) = 4|x| over the x-axis. Which equation describes g (x) ? A) g (x) = |x-4| B) g (x) = |x+4| C) g (x) = -4|x| D) g (x) = |x|-4

Can you simplify a+2/5a^2+6*3/6

What are the solutions of |6x-1| ≤ 23? Write the solutions as either the union or the intersection of two sets.

The O'Malley family is driving cross-country to see their cousins. So far, they have traveled 275 miles. This is 1/5 of the way to their cousins' house. How far do the O'Malleys live from their cousins?

a sun in a distance galaxy has an estimated mass of 1.61244 * 10 ^32 kg and the earth has a mass of 5.972 * 10^24 kg, how many earths would it take to equal the mass of the sun?