The vertices of a rectangle are given in the columns of the matrix r=[0/0 0/6 6/6 6/0]. if 3x[0/-1 1/0]xr is found to perform a transformation, what are the coordinates if the transformed rectangle? a. (0,0), (0,18), (18,18), (18,0) b. (0,0), (18,0), (18,-18), (0,-18) c. (0,0), (-18,0), (-18,-18), (0,-18) d. (0,0), (18,0), (18,18), (0,18)

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g

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?