Acertain arithmetic sequence has this explicit formula for the nth term: an= 11+(n-1)(4) the same sequence has this recursive formula:

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap