5x+4x2(2x+7)-6x2-9x+(x+3)(x-8) write this expression as a polynomial in standard form

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 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 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

If you answer 2+2 you will get over 80 points