Answer:
7
Step-by-step explanation:
5x4=20
20/2=10
17-10=7
Answer:
-3x - 2 + 4x - 1 = x - 3
Step-by-step explanation:
open brackets and simplify
Answer:
80/3
Step-by-step explanation:
same distance is covered at different speed , avg speed= 2ab/a+b
= 2*20*40/60
= 80/3
Should be $104 because, $8 X 13 Months equals to $104
Answer:
Step-by-step explanation:
The former cost of the book is
The new cost of the book is the old cost plus the of :
Since:
We have the following:
Then, the new price of the book is: