Tamara rewrote the expression 0.2(4+1.4y-2.1). Her steps are shown. Step 1: 0.2(4+1.4y - 2.1)
Step 2: 4.2+1.6y - 1.9
Step 3: 4.2-1.9+1.6y
Step 4: 2.3+1.6y
Which statement identifies and explains the first mistake Tamara made?

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