Answer:
Toni's account started with 20 and increased by 5 each week.
Step-by-step explanation:
20 is the intial amount and 5 is the rate of change.
Answer: 26.1
<u>Step-by-step explanation:</u>

Answer:
for 24 and 72 its 24 for 16 and 18 it is 2
Step-by-step explanation:
Answer:
0.2%
Step-by-step explanation:
2,000 people tested the new shampoo.
4 people had a mild allergic reaction.
4 is what percentage of 2,000?
0.2 percent.
(2,000 = %99.8)