Answer:
See below.
Step-by-step explanation:
1)
So we have:

This can be interpreted as:
"There exists a natural number <em>x</em> and an integer <em>y</em> such that x² is equal to y²."
2)
So we want even numbers are in the set of integers.

This is interpreted as:
"The set of even numbers (2n such that n is an integer) is in the set of integers"
Answer:
X=1
Step-by-step explanation:
It’s 2 secant lines on a circle.
https://www.mathplanet.com/education/geometry/circles/advanced-information-about-circles
Look at that website. The part says that (ab*ad)=(ac*ae)
Doing that, we get
9*(9+11x)=10(10+8x)
81+99x=100+80x
19x=19
X=1
I’m not that sure about my answer, but if I’m not wrong:
Total cost with 6 snacks: 78$
Total cost with x snacks: anything above 60$