Answer:
9) 28% decrease
13) 100% decrease
15) $9.90
17) 272 pages
18) 42 members
19) $27,840
20) 1,863 songs
Step-by-step explanation:
9) Subtract 68 from 95 and you get 27.
Divide 27 by 95 and you get 0.284...
Multiply 0.284... times 100 and you get 28.4.
Round to 28%
13) If a number goes from itself to zero, it's a 100% decrease
15, 18, 20) Divide percent by 100.
Multiply the percent by the initial number.
Add the new number to the initial number
17 and 19) Do everything you did in 15, 18, and 20, but instead of adding the new number to the initial number, subtract it to the initial number
