It's a little hard to tell from the gibberish in the choices but let's go with
Answer: 7 + 6yz
which is of second degree in its variables and has two variables. That's two differences than the first three, which are first degree univariate.
If there are no answer choices, I'll give you a few to work with:
16:52 (divide each number by 3 to get this)
8:26 (divide the above by 2, both sides)
4:13 (divide the above by 2, both sides)
96:312 (multiply the original by 2, both sides)
I think you get the gist.
~Hope this helps!
If he does three hours, its 9 strips, for four, its 12, six is 18, seven is 21, and nine is 27
Answer:
240
<em>hope this helps and pls give </em><em>brainliest</em><em>!</em>
