hey guys, i need some help on this question, plz, if you don't know the answer it;s ok but if u do plz help me. I will be giving 10 pts. :) thank you very much!

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

Multiplying an even number of negative numbers gives an answer that is choose from:

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.