Free points everyone

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49xy +34y - 72z. determine the degree of the polynomial

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1