Answer:
Step-by-step explanation:
We are given
we can rewrite it as
we know that
2y^2+7y-7 can not be factored
so, we can not reduce this expression
because this is the only way to reduce it
so, we get reduced form as
0
so fill in 88 where the x is so
y = 0.9 (88) - 1
y = 78.2
find the least common multiple of 25 and 30, which is 150
so they will flash at the same time every 150 seconds which equals 2.5 minutes