Answer: 40%
Step-by-step explanation:
Given,
Initial mass = 6.5kg
final mass = 3.9kg
So, Change in mass = initial mass - final mass
= 6.5 - 3.9
= 2.6 kg
and,
Change in percentage of mass = 
Change in percentage of mass = 
= 40
Answer:
-8.
Step-by-step explanation:
-7x - 1 = -9x - 17
-7x - (-9x) = -17 - (-1)
-7x + 9x = -17 + 1
2x = -16
x = -8.
Answer:
$64.6
Step-by-step explanation:
15% off $76 = -$11.4 = $64.6