Which pair of related inequalities can be graphed to find the solution set to log(x + 90) ≥ 7? A. y ≥ log(x + 90) and y ≤ 7

B. y ≥ log(x + 90) and y ≥ 7

C. y ≤ log(x + 90) and y ≤ 7

D. y ≤ log(x + 90) and y ≥ 7

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?