Figure A is a scale image of figure B. Figure A Figure B 12 Figure A maps to figure B with a scale factor of ali What is the value of r?

77

Step-by-step explanation:

the mean is the average, so if we add all the numbers, and divide it by the amount of numbers their are, we will get an average. In this case, we will add 76+79+80+82+50+78+83+79+81+82= 770. we have ten separate numbers we are adding together to get 770, so we divide 770 by ten to get our answer, 77.