Q1
Answer:

Step-by-step explanation:

explanation for second step:
you divide each side by 3 to get rid of the '3' in '3x'
Answer:
So this is also going to stay the same, multiply first, divide, then you have your answer. Make sure if needed you need to round up your numbers.
Step-by-step explanation:
Answer:
1,3,5
Step-by-step explanation:
The number of degrees in the first quadrant is 45 degrees.
<h3>Coordinates of a circle</h3>
The formula for calculating the angle in the first quadrant If the coordinates of point J are 

From the calculation above the number of degrees in the first quadrant is 45 degrees.
Learn more on circles here: brainly.com/question/24375372
Answer:
The area increases by 6 square units.
Step-by-step explanation:
The formula for the area of a triangle is base times height divided by two.
So, first solve 3 times 4 divided by 2.
Simplify 4 and 2 and you get 3 times 2 which = 6
Then Mark doubles it right?
So do 6 times 2 and you get 12
The first answer is 6, so it increased by 6.
I hope this answer helped. Sorry if I was wrong.