I believe this is the answer.
They will have planted the same amount of trees on the 4th day.
<u>it is the largest integer of the polynomial pf highest degree that is an exact divisor of each of two or more integers or polynomials.</u>
<u>answer</u><u> </u><u>=</u><u> </u><u> </u><u>GCF</u><u>.</u><u>.</u><u>.</u>
His score is 50
How to:
First test grade:0
Second test grade:50
Third test grade: 100
Add all three and divide by 3