PLEASE PLEASE HELP ME WITH THIS!

Erica has math test scores of 93, 86, 82, 85, 77, and 89. The final exam in the
math class is worth 15% of the grade. A final score of 90 is required to get an A.
Erica’s school rounds grades to the nearest whole number. If only her test
scores determine the remainder of her grade is it possible for Erica to get an A?
Explain.