I got a 36% on my test, a 70% on my lab, and 83% and 91 % on 2 assignments. What is hypothetically my grade ?

To calculate your final grade, you will need to consider the weight of each component in your overall grade. For example, if your test is worth 40%, your lab is worth 20%, and your assignments are worth 40% (10% each), you can calculate your final grade by multiplying each component by its weight:

Test: 36% x 40% = 14.4%
Lab: 70% x 20% = 14%
Assignments: (83% + 91%) / 2 x 40% = 82%

Adding these percentages together gives you a hypothetical final grade of 110.4%. However, since grades are typically capped at 100%, your final grade would likely be 100%.