Donut = $0.14 tax so $2.14 and tea = $0.07 tax so $1.07
Answer:

Step-by-step explanation:

we have to move 5 in the other side with a different sign, to get a 2 grade ecuation

now we know
a=2
b=9
c=-5
we have to find delta

and now we have to use the formula to find the root square



Answer:
19.2
Step-by-step explanation:
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Answer: 2.8025170
Step-by-step explanation: