

The discount is 3.75 while the discounted price would be 21. 25
Power rule I believe.
w²w³ = w²⁺³ = w⁵
You have to find a common denominator for the fractions. 5 and 7 both go into 35 which is the lowest common multiple of 5 and 7. 2/5 is multiplied by 7/7 and 3/7 is multiplied by 5/5. Then add the two fractions. So 29/35 parts are finished of the total number of bracelets.