Answer:
7x²-12x-10
Step-by-step explanation:
(5x²-8x+1) + (2x²-4x-11)
combine like terms
7x²-12x-10
Answer:
P = $900
Step-by-step explanation:
Simple Interest Formula: 
Where A is the final amount,
P = Principal
r = Interest Rate in Percent or
per annum
t = time in years
From the information given in the question,
A = $918
r = 2% per annum or 
t = 1 year
Lets substitute these values to find P, the principal.

Therefore, P = $900
Answer:
it means less than or equal to :)
Step-by-step explanation: