Answer:
The age of the grinkgo tree is 10 years old and the age of the dogwood tree is 4 years old
Step-by-step explanation:
Let
x -----> the age of the grinkgo tree
y -----> the age of the dogwood tree
z -----> the age of the blue spruce tree
we know that
------> equation A
----> equation B
substitute the value of z

-----> equation C
equate equation A and equation C and solve for y





Find the value of x (equation A or equation C)
therefore
The age of the grinkgo tree is 10 years old and the age of the dogwood tree is 4 years old
Personally I think the 3rd forth and the last one is but I’m not to sure
The correct answer for the question is y=x
Supplementary angles is when 2 angles add up to 180 degrees.
We will name the smaller angle a and the bigger angle b.
therefore:
b - 172.6 = a
a + b = 180
Now we substitute:
a + b = 180
b - 172.6 + b = 180
2b - 172.6 = 180
2b = 352.6
b = 176.3
To find a:
a + b = 180
a + 176.3 = 180
a = 3.7
Therefore,
angle a = 3.7 degrees
angle b = 176.3 degrees.
Hope it helps and have a great day ahead