Answer:
Question #1 It is three dollars of so the cost is $12
Question #2 The answer is 6
Question #3 21.25
Step-by-step explanation:
Answer: only has one solution
Step-by-step explanation: If you find the answer for 7x+3x-8, youll get 10x+8. This will be the same answer for 2(5x-4). Making them equal and having only one solution
Answer:
8-42 = -34 will be applied
use the app called "photo math" will give you your answers i would but the pic is too blurry
Answer:
X=23
Step-by-step explanation:
You should know that a triangle =180 degrees
Add all your angles together and =180
66+2x+3+3x-4=180
add similar terms
5x+65=180
Move your 65 to the other side
5x=115
x=23
(Optional)
to check if your answer is right substitute your x and add all angles together you should get 180 degrees.