Since

is negative, it doesn't have any real roots.
Answer:
the answer is 480 all u have to do is multiplie all the nombers together
⅔ and 8/12 form a proportion.
Trinomial is the ancer to the first one
130, is the answer.. so here's me having to come back and to explain,because this questions is SO hard.
They ask to round to the ten.
128
^This is ten, so we look to our right which is eight, is higher than 5. 5 is counted as higher. So 8 is over five and if we round 28, it's 30.
WOW, fascinating.
Thanks Brainly's "monitors" such help. -_-