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
Answer:
number 1. is C and number 2. is A
Answer:
Step-by-step explanation:
28*5 115 sub 115 from 800 then divide 685 by 5 then add 7 into that number 28 times
Answer:
Step-by-step explanation: 3/2=1.5 (-6/5)=(-1.2) 1.5+(-1.2)=0.3
Answer=0.3