First Question:
Follow PEMDAS
Parentheses, Exponents, Multiplication or Division, Addition or Subtraction
3 ÷
× (12 + 2³)
= 3 ÷
× (12 + 8)
= 3 ÷
× (20)
= 3 × 4 × 20
= 12 × 20
= 240
Second Question:
change the mixed number into an improper fraction:
=
=
÷
=
×
=
rounded to WHOLE number: 14 containers