Let
x = 3a (first angle)
y = 3a (second angle)
z = 6a (third angle)
The total angle of a triangle is ALWAYS 180.
3a + 3a + 6a = 180
12a = 180
a = 15
Therefore, x = 45, y = 45, z = 90
Price she paid, P = $80 .
She sells the bicycle at 1/4 of the price she paid.
Let, buying price is x.
So, as given in question selling price will be x/4.
Also, selling price is given as $80 .

Therefore, Steph pay $320 for the bicycle.
Hence, this is the required solution.
Answer:
88
Step-by-step explanation: make me brainliest if it is correct
Answer:
A) 
Step-by-step explanation:
The given expression is 
Here we have to use exponent rules and simplify the expression.
Power rule : 
Using the above rule, we can write
= 
Again using the power rule

Now we have to put together this expression, we get
= 
Now we have to use product rule.
Product rule: 
Using this rule, we can simplify further
= 
= 
Answer:
y = 7/6x - 62/3
Step-by-step explanation:
The equation for slope:
y = mx + b
m is the slope and b is the y-intercept
y = 7/6x + b
-9 = 7/6(10) + b
-9 = 35/3 + b
-62/3 = b