Answer:
There are 30 nonfiction books.
Step-by-step explanation:
The answer is 30 because 7 plus 5 is 12 and 72 divided by 12 is 6 and 6 times 5 is 30.
P.S Can I have brainliest?
Answer:
sorry i need these pionts srry :l
Answer:
7ab - 5a
Step-by-step explanation:
For addition and subtraction this type of variable we should always keep one thing in mind that, we can only add or subtract only those digits whose variables are the same.
Solving given equation step to step:
(2ab - 5a - 7) - (-5ab - 7)
Opening the bracket first,
⇒ 2ab - 5a - 7 - (- 5ab) - (- 7)
⇒ 2ab - 5a - 7 + 5ab + 7
Now, taking same variables digits together
⇒ (2 + 5)ab - 5a - 7 + 7
⇒ 7ab - 5a - 0
⇒ 7ab - 5a
Answer:
The answer is 131072
Step-by-step explanation:
