On her first 5 tests, Francine scored 78%, 82%, 89%, 83% and 84%. What was her mean score?

83.2%

Step-by-step explanation:

Just add all the percentages together and divide it by the number of scores, which in this case is 5.

83.2%

Step-by-step explanation:                                                                                                  we know, mean = sum of data/ number of data

= 78+82+89+83+84

=416

now ,

416/5 = 83.2%

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

i think the answer is d im not sure