Answer:
A.associative property of addition
<h3>
Answer:</h3>
18
<h3>
Step-by-step explanation:</h3>
Put 3 where x is, then do the arithmetic.
... f(x) = x(5x -9)
... f(3) = 3(5·3 -9) = 3(15 -9) = 3·6
... f(3) = 18
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Your calculator can do this, too.
Answer:
ok
Step-by-step explanation:
Answer:
49
Step-by-step explanation:
First you multiply all the numbers then divide by 50