Respuesta :
Step-by-step explanation:
cost of each notebook=$1.20
cost of 3 notebooks=3($1.20)=$3.60
cost of a box of pencils=$1.50
cost of a box of pens=$1.70
total cost=$3.60+$1.50+$1.70
=$6.80
Step-by-step explanation:
cost of each notebook=$1.20
cost of 3 notebooks=3($1.20)=$3.60
cost of a box of pencils=$1.50
cost of a box of pens=$1.70
total cost=$3.60+$1.50+$1.70
=$6.80