Answer:
4.09 m
Step-by-step explanation:
Let the length of the shadow cast by a person be x m.

Answer: I think it’s B. Output values
Substitute x for 7.
f(x)=22x+12
f(7)=22(7)+12
Multiply first, then complete addition.
f(7)=154+12
f(7)=166
16/9 is the answer, just use a calculator next time or multiple 4/3 x 4/3
Work out the z scores for 51 and 54
z1 = (51 - 57.5) / 6.5 = -1
z2 = (64 - 57.5)/6.5 = 1
from tables of normal distribution this value os 3413 + 3413 = 68.26%
so the answer is c