Answer:
<h3>THE SCIENCE OF COLLECTING, REVIEWING AND ANALYSING DATA.</h3>
You subtract two and then multiply by -7and you get a<63
Answer:

<h3>★ Value of x is <u>8.1</u>.</h3>

<h3>★ Value of H is <u>12.8676</u>.</h3>
Remember:
- tan∅=Perpendicular/Base
- sin∅=Perpendicular/Hypotenuse
The answer to your question is a=124 because the center triangle is a isosceles triangle