Answer:
2a + 10
Step-by-step explanation:
the number = 2(a + 5)
= 2a + 10
Answer:
6.4
Step-by-step explanation:
To find the distance you have to do this formula.

6.4 is the answer rounded to the nearest tenth.
Hope this helps!!
Answer:
C) 15
Step-by-step explanation:
Here we have to use the combination to find the number of possible combinations.
Total number of classmates (n) = 6
We are selecting 2 individuals. So r = 2.
The combination formula nCr = 
Plug in n = 6 and r =2, in the above formula, we get
= 
= 
Simplifying the above factorial, we get
= 15
So the answer is C) 15
The first problem is true because with multiplication it doesn't matter which order it is in.
The second problem is false because you will get a different quotient depending on which numbers are on which side of the equation.
Answer:
A. 20cm hope this helps
Step-by-step explanation: