A is the correct awner
Answer:
Step-by-step explanation:
x - 6 = -55 <em>add 6 to both sides</em>
x - 6 + 6 = -55 + 6
x = -49
x+2/5x
x%of 40 is 2/5x
...40 increased by x% of it self = x+2/5x