Jennifer scored 76% on the test meaning she earned 76% of the possible points on the test. There were 160 possible points on the test so she earned 160 x 0.76 = 122 points. Each question is worth 2 points so she got \( \frac{122}{2} \) = 61 questions right.

To divide terms with exponents, the base of both exponents must be the same. In this case they are so divide the coefficients and subtract the exponents:

\( \frac{-4c^9}{8c^3} \)
\( \frac{-4}{8} \) c^{(9 - 3)}
-\(\frac{1}{2}\)c⁶

By buying two shirts, Roger will save $49 x \( \frac{5}{100} \) = \( \frac{$49 x 5}{100} \) = \( \frac{$245}{100} \) = $2.45 on the second shirt.

So, his total cost will be
$49.00 + ($49.00 - $2.45)
$49.00 + $46.55
$95.55

A factor is a positive integer that divides evenly into a given number. For example, the factors of 8 are 1, 2, 4, and 8.

The area of a rectangle is width (w) x height (h). In this problem we know that the rectangle is twice as long as it is wide so h = 2w. The perimeter of a rectangle is 2w + 2h and we know that the perimeter of this rectangle is 12 meters so the equation becomes: 2w + 2h = 12.

Putting these two equations together and solving for width (w):

2w + 2h = 12
w + h = \( \frac{12}{2} \)
w + h = 6
w = 6 - h

From the question we know that h = 2w so substituting 2w for h gives us:

w = 6 - 2w
3w = 6
w = \( \frac{6}{3} \)
w = 2

Since h = 2w that makes h = (2 x 2) = 4 and the area = h x w = 2 x 4 = 8 m²