Answer:
B -1/9
Step-by-step explanation:
(y - 1) / y = 10
y - 1 = 10y
- 1 = 9y
y = -1/9
Option C is your answer.
Add (- 3) + 2 to get - 1 for the exponents. 2^ (-1) is the same as 1 / 2^1 which is 1/2.
8 19/40 as mixed number
339/40 as improper
It would take up 29/45 parts of the wall.
the LCD of 4/9 and 1/5 is 45
20/45 + 9/45
20 + 9 = 29/45