All methods are supposed to be correct in most if not all situations and it should not matter if you use a different method given the options
Answer:
he earns $14 per hour so multiply 14 by 40=560
Milk, water and aluminum foil
A and b are perpendicular meaning that they intersect forming 90
b and c are parallel meaning that the intersection of c and a is also perpendicular
11x - 9 = 90 degrees
solve
11x - 9 = 90
add 9 to both sides
11x = 99
divide both sides by 11
x = 9
Hope this helps
