Answer:
A
Step-by-step explanation:
(3x -14) + 9x is 90 degrees, so if you add 90 it becomes 180 degrees
It is 90 degrees because you can see that there is a right angle there
2+4=4+2 is an example of commutative property of addition
Answer: 0, 7, 14, 21, and 28
Step-by-step explanation: To find the first 5 multiples of 7, multiply 7 by the first 5 whole numbers which I have done for you in the image attached.
To quickly review, the set of whole numbers are shown below.
{0, 1, 2, 3, 4, ...}
The numbers that I have highlighted in green will be your first 5 multiples.
Answer:
You have to measure the sides and make sure they are the same and you shape them to look like a square
Step-by-step explanation: