Answer:
- 4
- 23
Step-by-step explanation:

102
the angles are alternate so they add up to 180
180-78=102
hope this helps :)
if you need me to explain more just let me know :)
12 - 5.25 = 6.75
The other piece is 6.75 inches long
Answer:
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Step-by-step explanation:
Rewrite the quadratic using the method of completing the square:

From this form it is immediately clear that the vertex of the parabola is at x=1 and its y-intercept at -6.
Answer:
50
Step-by-step explanation:
so half a dollar is $0.50. We multiply by 9, which gives you $4.50. But the customer gave $5, so they would get $0.50 back.