Answer:
6
Step-by-step explanation:
subtract 3 from each side
The answer is 45/8
You have make sure that the denominator has the same value!
31/4-17/8=62/8-17/8
=45/8
Vertex is

and minimum value of f(x) is 12
Hope this helps
{If this is a biology question}
The bottleneck effect can be explained by the cheetah population. Cheetah's used to be unique and many before they were hunted. Their population dropped so low, breeding produced almost exact 'clones'. The bottleneck effect is when genetic diversity is lost.
Answer: Hardwood flooring
Step-by-step explanation:
Given
Rohann renovation of Carpentering cost $875 for 
For hardwood flooring
cost $750
So, cost per square meter for different floors are


Thus, the cost of the Hardwood flooring is more expensive.