The formula for the circumference of a circle is C = 2 pi r. Determine the circumference when the radius r is 10 cm. a.
100Pi cm
c.
20 cm
b.
20Pi cm
d.
100 cm

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Which function represents the sequence? f(n)=n+3 f(n)=7n−4 f(n)=3n+7 f(n)=n+7