Answer:
a
Step-by-step explanation:
Answer:70
2x-7
33.
x^2 - 7x + 4.
The discriminant of the above
= b^2 - 4ac
= (-7)^2 - 4*1*4
= 49 - 16
= 33.
She drove a 122.5 miles
Answer:18x+5