−3x 4 +7x 2 − 2x − 5x 2 + x + 4x 2 + 6x 4

What's the simplified version?

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

An empty bucket is placed under a faucet dripping at a constant rate of 4 milliliters per minute. with the given information, which of these statements is a reasonable conclusion? a there will be 24 milliliters of water in the bucket after 16 hour. b there will be 60 milliliters of water in the bucket after 14 hour. c there will be 160 milliliters of water in the bucket after 20 minutes. d there will be 100 milliliters of water in the bucket after 40 minutes.

What is the range? can’t seem to find it out