Dana wants to find the sum
3 4 6
4 2 1
+1 5 2
________
We will not regroup this ones place because the sum of the digits in the ones place is not up to. It's just 6+1+2 = 9.
Therefore, 13a) No.
There is no regrouped tens to add, so we would not able to regroup the ones place.
Therefore, 13b) No.
We regroup the tens place because the sum of the digits in the ones place is upto to 10.
And 13c) Yes.
We add the regrouped hundred as we regrouped the ones place.
Therefore,
13 D) Yes.
How much were the power drills?
Answer:

Step-by-step explanation:
Given
4
The 4 can be placed inside the radical by squaring it, that is
4
= 
= 
= 
Answer:
3/25
Step-by-step explanation:
Rewrite the decimal number as a fraction with 1 in the denominator
0.12=0.121
Multiply to remove 2 decimal places. Here, you multiply top and bottom by 10^2 = 100
0.12/1×100/100=12/100
Find the Greatest Common Factor (GCF) of 12 and 100, if it exists, and reduce the fraction by dividing both numerator and denominator by GCF = 4,
12÷4/100÷4 = 3/25
Therefore
0.12 = 3/25