Answer:
∠O = 50°
Step-by-step explanation:
Opposite angles of an isosceles trapezoid are supplementary.
... ∠O + ∠T = 180°
... ∠O = 180° - ∠T = 180° -130° = 50°
Multiply 60 by 15,subtract 60 by the product. after you have subtracted divide it by 4.
The formula of a slope:

We have the points A(-7, a) and B(c, d).
Substitute:

Exception: c ≠ -7.
Answer:
B.
Step-by-step explanation:
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The only answer that has both the arrow going right ( Look at the sign) and the open dot ( less than or equal to and greater than or equal to always have an open dot) is B.