Answer:
10x + 30=140. Kegan has to mow his neighbors lawn 11 times.
The first letter because 1•5 = 5. 2•5 equals ten etc
550=km is what I think it is but not a hundred percent sure
rewrite -1 1/3 as a decimal: -1.5
-2.1 - x = -1.5
Subtract -2.1 From both sides:
X = -1.5 - -2.1 = -1.5 + 2.1
X = 0.6
Answer: B. 0.6
