Vertex: (-2,-1)
Zeros: -3,-1
Answer:
7
Step-by-step explanation:
Answer:
89 kids are in the 3 rd grade
Step-by-step explanation:
welll...you have there written just one relationship...it is berween 280 and 4 hours...you have to figure out speed:

it is speed per hour
then you just connect time and speed:
- 140 - 2
- 280 - 4
- 350 - 5
- 420 - 6
- 560 - 8
- 700 - 10
240 days is 4 times the half-life, which means that a sample of 1000 mg will decay to

after 240 days.