Answer:

Step-by-step explanation:
The given triangle is isosceles. Therefore the base angles are equal.
This implies that,
.
To find
we add the interior add angles and equate to
.
This implies,

We substitute to obtain,

We evaluate to obtain,



We divide through by 3 to get.

The y-intercept is found by letting x = 0 and finding / calculating y. That would be (0, -10).
The x-int. is found by letting y = 0 and finding x. That would be (10,0).
(3, -10) and slope of 4
Write in point-slope form.
Formula:(y-y1)=m(x-x1)
(y-(-10))=4(x-3)
y+10=3x-12, distributive property
Solve for y
y=3x-22
Answer:
The answer is 109.14
Step-by-step explanation:
You have to take away 15% from 120$ which gives you 102$. Then you add 7% and that gives you 109.14