(8/a+4)+(10/b-6)
so common denominator is (a+4)(b-6)
=(8/a+4) *(b-6/b-6)+(10/b-6)*(a+4/a+4)
= 8(b-6) / (a+4)(b-6) + 10(a+4)/(a+4)(b-6)
Answer: Store B
Step by Step
divide the the normal price of the book by four to get the amount of the book on sale in store B which is $21. To get the answer for Store A divide the normal price of the book by ten then divide the amount you get by 2 and add the two amounts up to get the the amount of the book on sale which is $21.26
I only know the answer for b I don't know the answer for d. So here is the answer for b 9 time 9= to 18+11+8x4-1=60
