ANSWER
b=11
EXPLANATION
The given quadratic equation is

We expand to get:

We simplify further by combining the x terms.

This is the standard form.
Comparing to

We have b=11
Velocity of the car is equal to the distance travelled by the time spent.
If V= velocity, d = distance & time = t, then
the equation becomes V=d/t
Answer:
Where's the rest of this question??
Answer:
Carlos bought 80 feet of wire for $17.60.
Then the price for 1 feet of wire is 17.6/80 = 0.22
=> 30 feet of wire would cost: 30 x 0.22 = 6.6
Hope this helps!
:)
∛(<span>-1000p^12q^3)
= -10p^4 q
Hope it helps</span>