Math 7 . grade 7

what is -2y + 10 + 2y - 8 simplified?

hint: write it down on paper first to see what you get!

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Precalculus question, image attached.

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y