What is the minimum number of intersecting lines that lay in a plane?

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?

Find the measure of angle b in the following triangle

Yasmin purchased 6 heads of cabbage that each weighed 2 3/8 pounds how much did the cabbage way all together