A^2 - b^2 = (a+b)(a-b)
answer :
t^2 - 1
n^2 - 225
Answer:
(f+g)(x) = 60x + 400
Step-by-step explanation:
Given :
Amount in account A:
f(x) = 20x + 100
Amount in account B :
g(x) = 40x + 300
Total amount in Account A and B:
f(x) + g(x) = (20x + 100) + (40x + 300)
(f+g)(x) = (20x + 40x) + (100 + 300)
(f+g)(x) = 60x + 400
25÷100=0.25
0.25×680=170 is the answer
Answer:
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Step-by-step explanation:
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