Answer:
77
Step-by-step explanation:
Answer:The answer can be calculated by doing the following steps;
Step-by-step explanation:
I think you have done some mistakes in question because at one stage there comes a complex no. And at the end the value of n comes in decimal.
Answer:

Step-by-step explanation:
So we have the trinomial:

First, factor out a 2:

Now, factor within the parentheses.
To do so, we want to find two numbers. When multiplied, these two numbers must equal (a)(c) and when added, they must equal b
(a)(c) is 2(-5) or -10 and b is -3. So, we want two numbers that when multiplied together gives -10 and when added gives -3.
-5 and 2 works. Therefore:

Replace -3x with 2x and -5x:

Factor out a 2x for the first two terms. And factor out a negative 5 for the remaining two:

Grouping:

And we're done!
Answer:
$678.98
Step-by-step explanation:
Let the amount she had before she started spending be T. If she went shopping and spent $493.98 then the amount she would have is
= T - 493.98
Given that she has $185 left then
T - 493.98 = 185
Add 493.98 to both sides
T - 493.98 + 493.98 = 185 + 493.98
T = $678.98
She must have had $678.98 in her bank account to begin?
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