Hey peeps my last one for today (i hope) only answer if know them both

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Complete the conditional statement. if a + 2 < b + 3, then a < b b < a a – b < 1 a < b + 1

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?