Answer:
What is equation?
Step-by-step explanation:
The top one. Think about the difference between each one: X goes from 1 to 2 and Y goes from 5 to 10. Each number you go up, Y increases by 5. This means there is a proportional relationship.
Answer:
C- 2
Step-by-step explanation:
f(-2)=4x+10
= 4*(-2)+10
=-8+10
f(-2)=2
Two buckets of seawater contain
kg of salt.
Step-by-step explanation:
Amount of salt in 1 kg water = 
It is given that;
1 liter = 
500 liters = 
500 liters = 548 kilogram
As,
1 kg of seawater =
of salt
548 kilograms = 
548 kilograms =
kilograms of salt
Two buckets of seawater contain
kg of salt.
Keywords: unit rate, multiplication
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Answer:
0
Step-by-step explanation:
x and x are same terms.