Astudent earned grades of 84, 78, 84, and 72 on her four regular tests. she earned a grade of 78 on the final exam and 86 on her class projects. her combined homework grade was 87. the four regular tests count for 40% of the course grade, the final exam counts for 30%, the project counts for 10%, and homework counts for 20%. what is her weighted mean grade? round to one decimal place.

The weighted mean grade is 81.2%.

Step-by-step explanation:

A student earned grades of 84, 78, 84, and 72 on her four regular tests.

She earned a grade of 78 on the final exam and 86 on her class projects.

Her combined homework grade was 87.

The four regular tests count for 40% of the course grade, the final exam counts for 30%, the project counts for 10%, and homework counts for 20%.

So, weighted mean grade can be calculated as :

=>

=> = 81.2

Therefore, the weighted mean grade is 81.2%.

what shape is

$450 i think. hope this ☺