Answer:
x = 6
Step-by-step explanation:
To find the missing side, write a proportion using side lengths from each similar shape. A proportion is an equation that sets equal two ratios.
Find x by cross multiplying numerator and denominator of each fraction.
4(18) = 12x
72 = 12x
6 = x
0.0009
36^7/12=6 y/x
im not sure for the rest of it
C. Natasha has been charged by $1.85 for her purchase.
third option
hope helpful <3