Answer:
25% increase
Step-by-step explanation:
final value (20) -minus- starting value (16)
-------------------divided by ---------------- times * 100
starting value (20)
4
--- x 100
20
25%
Day 2
Every 20 days, one jar is full.
To find when it was 1/8 full, we multiply the 20 days by 1/8.
20 x 1/8 = 2
it is 1/20
add 6a and 5a and get 11a
then:
11a=-11
a=-1
