Does anyone know he answers for 2 and 3? Need full work and explanations

What is coefficient of the term of degree of degree 5 in the polynomial below

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?