Identify the polynomial written in descending order.

4x3+ 12x2− 5x − 1
−1 − 5x + 12x2+ 4x3
−5x − 1 + 4x3+ 12x2
12x2+ 4x3− 1 − 5x

What value of x is in the solution set of –5x – 15 > 10 + 20x?

Can you simplify 4/7? 24 points will be awarded!

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.