7 miles per hour.
if you multiply the distance and time by 2 you get 7 miles in 1 hour, or 7 mph
Answer:
25% ; 400%
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
-5 is a constant because its a number on its own without a variable
Answer with Step-by-step explanation:
We are given a variable b
We have to state the additive property of zero using the variable b.
Additive property of zero: It states that when any number b is added to zero then we get sum is equal to number itself.
Mathematical representation:

Suppose, a number b=9
Then, 9+0=9
0+9=9
This property is called additive property of zero because when 9 is added to 0 then we get sum equals to 9.