Ur answer is going to be 78.507
Answer:
Hannah got $200 for her mom
Step-by-step explanation:
With the numbers in this question you don't even have to worry about percentages.
You can think of it in quarters:
75% is 3 quarters of 100%
(25% + 25% + 25% + 25%)
$150 is 3 quarters of $200
($50 + $50 + $50 + $50)
Hope this helps and isn't a confusing way of explaining it! :)
4x^2-5x-21 is of the form ax^2+bx+c, a quadratic equation.
so b in this case is -5
I thinks that the answer is 9
