1 find the indicate IQ score x of the area to the left with

1. find the indicate IQ score x of the area to the left with area is 0.1587 (z is negative) and standard deviation is 15, mean is 100

2. Find the indicate Iq SCORE x of the area to the left with area is 0.9798 (z is negative), standard deviation is 15, mean is 100

1)
Area = 0.1587
So, z = -1

z = (x - u)/SD
-1 = (x - 100)/15
-15 = x - 100
x = 100 - 15
x = 85 --> ANSWER

2)
Area =0.9798
So, z = 2.05

2.05 = (x - u)/SD
2.05 = (x - 100)/15
2.05*15 = x - 100
30.75 = x - 100
x = 100 + 30.75
x = 130.75 ---> ANSWER