Im giving 20 points and what is the correlation coefficient r for the data set? enter your answer to the nearest hundredth in the box. r = x      y 25 240 26 242 27 230 28 229 28 220 28 219 29 200 30 202 31 184 32 180

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence.then write an expression to find dario's text messaging bill if he sends n text messages over 250.

Olivia uses the work below to determine 55% of 720 which explains the error in olivia’s solution

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