Question

X plus 3(2r - 3y plus z) plus 7z

Answer 1

Answer:

$x + 3 \: (2r - 3y + z) + 7z$

$x +3 \: +2r-3y +8z$

Answer 2

Answer:

→→→ [■□□□□□□□□□] 10%

→→→ [■■□□□□□□□□] 20%

→→→ [■■■□□□□□□□] 30%

→→→ [■■■■□□□□□□] 40%

→→→ [■■■■■□□□□□] 50%

→→→ [■■■■■■□□□□] 60%

→→→ [■■■■■■■□□□] 70%

→→→ [■■■■■■■■□□] 80%

→→→ [■■■■■■■■■□] 90%