Would it be 270? if you take 90 3 times. due to that there are 3 different durations.
The answer is c. hope that helped
The answer is 26 hope that helped
Answer:
option A and B

and

Step-by-step explanation:
we have

The formula to solve a quadratic equation of the form
is equal to

in this problem we have

so

substitute in the formula


so

and

I think it A but I’m not 100% sure