At Betty’s Bagels, it costs $1.40 less to buy a dozen bagels than to buy 12 individual bagels at their regular price. If Billy buys 56 bagels and spends an average of 90 cents per bagel with the discount, what is the regular price of one bagel?

Data given:
Regular price of one bagel ($)= x
1 dozen of Bagels ($)= 12x-1.4
Bagels bougth = 56

So it's neccesary to get the number of dozens from the bagels bought:
Number of dozens= \frac{56}{12}
Number of dozens= 4

So There were bought 4 dozens and 8 bagels extra.

As a result the money spent was:
\(Total= 4(12x-1.4)+8x\)
\(Total= 56x-5.6\)

Regular price per bagel:
\(\frac{(56x-5.6)}{56} = 0.9\)
\(x-0.1 = 0.9\)
\(x=1 \)

Option: A