Answer:
69
Step-by-step explanation:
If she is averaging 65% of the worth of lectures.
the lectures she had was supposedly rated out of 60. Therefore, the 65% will be 65% of 60(total grade)
0.65 * 60 = 39
On the second part, if we apply the same method, we have
0.75 * 40 = 30
All we have to do on add both together
39 + 30 = 69.
therefore, get total grade in the course is 69
Here are the steps:
(3x-9)^2
(3x-9)(3x-9)
9x^2 - 27x - 27x +81
9x^2 - 54x + 81
good luck ;)
18 + 5 = 23
2.9%