Brian bought a tablet that was discountedby 15%. the tablet normally sells for y dollars. eith tax, brian paid $309. if the tax was $20, write and solve an equation that can be used to find the original cost of the tablet.

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