What is the difference of the polynomials? (1222 - 1142 - 13x) - (5x2 - 1472 - 9x)
O 7x+3y2-4x
O 7x2 – 3y2 - 4x
O 7x2 - 25y2 - 22x
O 17x2 - 25y2-22

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest