Answer: answer choices B would be best
Step-by-step explanation:
Answer:
B. The unit rate is 3:1.
Demi can solve 3 equations in one minute.
30 equations = 10 minutes
= 30:10
[tex]=\frac{30}{10}[/tex]
[tex]\frac{30}{10}=3[/tex]
= 3:1
