please help me with my 6th grade homework

Answer:
see below
Step-by-step explanation:
Mean: add them all up and divide by the number of numbers
( 9+8.75+8+9+8.7)/5=43.45/5=8.69
Median is the middle number when lined up from smallest to largest
8,8.7,8.75,9, 9 The middle is 8.75
Mode is most often
mode is 9
Range is largest minus smallest
9-8 =1