Step-by-step explanation:
Q7) 10% of 30=3
40% of 30 =3×4=12
30-12=18
the sale price of radio is 18
q8)purchase lose lemmons:0.99÷2=0.495
Bag of 6=2.50÷6=0.4166666667
so the better value is the bag of 6 for 2.50.
