Answer:
First option
Step-by-step explanation:
The result of first expression:
7(6+z) multiply 7 with inside the parenthesis
7(6+z) = 42 + 7z
the result of second expression:
since we need to do multiplying first,
7*6 = 42 and 7*z = 7z
then we add them
42 + 7z this is the same result we found for the first equation
Answer:

Step-by-step explanation:
GIVEN: Tina, Sijil, Kia, vinayash Alisha and shifa are playing game by forming two teams Three players in each team.
TO FIND: how many different ways can they be put into two teams of three players.
SOLUTION:
Total number of players 
total teams to be formed 
total players in one team 
we have to number of ways of selecting
players for one team, rest
will go in other team.
Total number of ways of selecting
players 


Hence total number of different ways in which they can be put into two different teams is
Your answer for 15 is D or C. For 16 I’m estimating 125?
Answer:
15
Step-by-step explanation:
Diagram would be helpful.... I am assuming this is a right triangle with legs ratio 3:4
Answer:
h + 7
because if Michael has 7 more than you just add 7 to Isiahs unknown