Answer:
Option B.
Step-by-step explanation:
If a quadratic equation is defined as
.... (1)
then the quadratic formula is

The given equation is

It can rewritten as
.... (2)
On comparing (1) and (2) we get

Using quadratic formula we get



Therefore, the correct option is B.
Answer: $3.10 per gallon
Step-by-step explanation: 9.30 divided by 3
Answer:
Decreased by 20%.
16 lbs is 80% of 20 lbs.
Step-by-step explanation:

y × 20 = 16 × 100
20y = 1600
20y ÷ 20 = 1600 ÷ 20
y = 80
100% - 80% = 20%
Answer:
D
Step-by-step explanation:
