You have the following test scores:
75, 82, 80, 70
The tests carry a weight of 29% in the class.
In order to determine how many point will you have toward your overall grade, based on tests points, you first calculate the average score of the obtained test scores, just as follow:
average test scores = (75 + 82 + 80 + 70)/4 = 307/4 = 76.75
Next, you calculate the 29% of the previous result:
0.29 x 76.75 = 22.257 ≈ 22.26
Hence, you will have 22.26 points due to test scores