1. distributive property
2. commutative property (the order of 8x and -24 is swapped)
3. reflexive property ((8-24) = -16; -16 is substituted for 8-24. I prefer "substitution property".)
4. commutative property (the order of 8x and -16 is swapped)
5. distributive property
The line has a slope of 4
The product of 39 and 5.2 x 10 to the power of 5 expressed in scientific notation is 
<u>Solution:</u>
Given, expression is product of 39 and 5.2 x 10 to the power of 5
We have to find the product value of above two numbers in the scientific notation,

By multiplying 39 with 5.2, we get

Hence, the scientific notation of the product is 
Answer:
There are 112 peaches, and 56 nectarines!
Step-by-step explanation:
1) Write the question in an equation:
P+N=168
2)We know that there are twice as many peaches as Nectarines, so rewrite the variable "P" as "2N":
2N+N=168
3) Combine alike terms:
3N=168
4) Divide both sides by 3:
N=56
5) Substitute 56 as N in our equation for P (2n):
2(56)
6) Solve:
P=112
Answer:
Debbie
Step-by-step explanation:
Remember that
1 mile=5,280 ft
1 minute=60 seconds
In order to be able to compare all the speeds, we are going to unify the units to feet per second
we have
1) Debbie runs 15 feet per second

2) Liz runs 112 feet in 11 seconds
Divide the distance by the time to find the unit rate

3) Stephanie runs 1 mile in 411 seconds
Convert to feet per second

4) Tony runs 581 feet in 1 minute
Convert to feet per second

therefore
The fastest is Debbie because her speed is greater than the other runners.
