Which equation can be used to solve for x in the parallelogram below? (6x+12)
(2x+8)°
(3x-12)
(7x-8)
A.
60 + 12 = 70 – 8
B. O (32
12) + (72 – 8) = 90
C.
(72
8) + (6x + 12)
180
DO 70 – 8= 22 +8

According to the normal model, what percent of receivers would you expect to gain fewer yards than 2 standard deviations below the mean number of yards

Fiona has to plot a histogram of the given data

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?