Answer these in scientific notation with work shown, adding scientific notation.

9.9 x 10^-1 + 5.2 x 10^-2

3.24 x 10^5 + 8.3 x 10^1

1.24 x 10^0 + 5 x 10^-1

1.  

2.

3.

Step-by-step explanation:

1)  

Now,    =    

So,    =    

2.

Now,    =    

So,    =    

3.

Now,    =    

So,    =    

no

step-by-step explanation:

2-7=-5

7-2=5

when you combing like terms for ech expression, 5 and -5. these numbers are not equal to each other.

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.