Answer:
392 minutes
Step-by-step explanation:
Answer:

Step-by-step explanation:
we have the options

the one that is a perfect equare tinomial is:

because we can rewrite this as follows:
this is because we know that

thus

and the other options cannot be represented as a perfect square trinomial, so the correct answer is:

you have to add 90 +90 3 times then theres your answer :)