Complete each equation for A, B, C, and D. (Number 4)

Graph the line with the given slope m and y-intercept b. m=-3,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?

What 620000 divided by 10 to the third power