State the degree and leading coefficient of each polynomial in one variable. if it is not a polynomial in one variable, explain why.
need
1. −6x^6−4x^5+13yx
2. 8x^5 -12x^6+14x^3-9
3. 15x-4x^3+3x^3-5x^4
4. (d + 5)(3d -4)
5. 6x^5 - 5x^4+2x^9-3x^2

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Will give brainliest plz hurry lexie surveyed 4 teenagers to find out approximately how many hours, per week, they read for fun, and how many siblings they have. brooke said she reads about 10 h a week for fun, and that she has 5 siblings. celia said she has 1 brother and 1 sister and reads for fun about 3 h each week. henry said he has 2 brothers and reads for fun about 30 min each week. jude said he doesn't read for fun and has 3 brothers and 3 sisters. use this information to complete the data table. express your answers as whole numbers or decimals. name hours of fun number of siblings brooke celia __ henry jude

X+y=-4 x-y=2 use elimination with adding and subtraction