Answer:

Step-by-step explanation:
Given that the 2 triangles are congruent based on the Hypotenuse-leg theorem, this implies that:
, and
Using the expression,
, solve for y:



I believe that the correct answer is A
For a) the pattern rule goes 12+(12x2)=36 36+(12x4)=84
So the pattern rule is double the number and then times it by twelve to get to the next answer
The answer is $25.35
6.96× 3= 20.85
20.85+ 4.50= $25.35