Answer:
-23
Step-by-step explanation:
calculate,
3^2 x (-2) -5
multiply, evaluate the power,
-9 x 2-5
multiply the numbers,
-18 -5
calculate,
-23
So your answer is -23
Answer:
-1 1/6
Step-by-step explanation:

Convert the mixed numbers into improper fractions

Apply the rule: a + (-b) = a - b

The Least Common Multiplier of 6 and 3 is 6
Adjust the fractions on the LCM

Apply the Fraction Rule: 

Subtract the numbers

Apply the Fraction Rule: 

Convert improper fraction into a mixed number

Hope this Helps :)
Assuming your plus sign means divide:

becomes

you flip the second fraction and multiply. To multiply you multiply across the bottom and then across the top.

Hope that helps. Feel free to ask any questions.
Step-by-step explanation:
getcalc.com's fraction to decimal calculator to find what's an equivalent decimal for the fractional number 48/400.
50/400 0.125 12.5%
49/400 0.1225 12.25%
48/400 0.12 12%
47/400 0.1175 11.75%