He can by 6 pens. 6.7 to be exact.
Hope this helps!!
Answer:
Latter C.
Step-by-step explanation:
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The lion runs 50 miles per hour which is 20 more than a house cat. 20 mph + house cat mph = 50 → house cat mph = 30mph
Use completing the square:
Ex:

Now apply to your problem.
First factor out the '4' in front of the 'x^2' term

Apply completing the square:
Slope = -1/2 hope that helps.........