Which shows how to find the value of this expression when x=-2 and y = 5? (3x®y-2,2
32 (-2)
54
3(-2,8
54
32(5) 6
(-2)
(2005

If a is a nonzero real number then the reciprocal of a is

Simplify -4z+2y-y+-18z a.-22z+y b.-14z+2 c.3y+22z d.y +14z

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?