C is the answer to the question.
As the equation is the form y= ax^2 + bx + c
Answer:
No
Step-by-step explanation:
Because 6, 6 and 10 are not Pythagorean triplets.
Hence, it is not a right triangle.

Answer:
B
Step-by-step explanation:
spent 22 ---> x - 22.
at least 28 left ---> (x - 22) >= 28
SOLVE:
x - 22 >= 28
x >= 50
Yes I think she is because y = f(x) = a + bx.
All you need for a linear function is one independent variable and one dependent variable, and you have that.
Hope this helps, sorry if not, have a good day. c;
The correct answer is -4.