What goes into 18 and 42 for equivalent fractions

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.

You draw a card at random from a deck that contains 33 black cards and 77 red cards.