<span>304.688. Take 25% of 406.25, which is 101.562 and then subtract it from 406.25.</span>
The number of points Marco needs to bring his average up to 90% is 15points.
If there's a possible 25 possible points, and Marco has taken 5 quizzes;
Evidently, each quiz has weighs 5 points.
Mathematically;

- 2100 + 500x = 2250 + 450x
x = 3.
Therefore, he needs 5x points = 15 points to bring his average up to 90%.
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Answer:
No solutions
Step-by-step explanation:
This parabola <em>does not</em> touch the x-axis, therefore, there are no solutions.
Step-by-step explanation:
S is equal to Q
Q= 48.5
there are two angels (S,Q). They equal 48.5
so 48.5x2= 97
all angels together (QRSP) equals 360
you can take the 97 and subtract it from the 360 =263
divide 263 to get the angels for P and R
S= 48.5
Q=48.5
R=131.5
P=131.5
-23/17y < 12/7
y > 12/7 * - 17/23
y > - 204 / 161 or -1 43/161