Hello if anyone wants to talk with or do a zo o m how are you guys i had

What is the slope of the line that contains the points (-2,1) and (0,-3)

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

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?