Answer:
it have no answer in real number(but it have in complex number if you know)
Step-by-step explanation:
4x^2+36=0
4x^2=-36
(if you know complex numbers see this: x^2=-9 then

)
D is the correct answer to this question
It’s b because if Mandy goes 18 days and her friend goes 3 times the days she goes.
The value of angle Y is -120° because you know that angle S is half of angle Y and -60*2 equals -120°. Hope that helps!