Twice a number decreased by 15 is equal to - 27. What is the number?

The perimeter of the sign is 28 meters. If the width of the sign is 4meters, what is the length in meters?

Building A is 255 meters taller than building B. If the height of building A is subtracted from twice the height of building B, the result is 234 meters. How tall is each skyscraper?

What ordered pair is the solution to this system of equations y = 5 x + y = - 1 (5, 4) (4, 5) (5, - 6) (-6, 5)

A ship drops anchor in a harbor. The anchor is 49 ft. above the surface of the water when it is creased. Use the vertical motion formula h=-161? + vt + s to answer the following questions. a. What is the value of x, the starting height? b.

Which of the following are necessary when proving that the opposite angles of a parallelogram are congruent? A. Opposite sides are perpendicular B. Opposite sides are congruent C. Angle addition postulate D. Segment Addition postulate

How do you write 120% as a decimal and as a fraction

Find the derivative of the function. y = √ (11x + √ (11x + (√11x)))

Carmen spent $88 at the mall the money she spent was 25% of the total amount she had in her wallet

Which of the following situations can be modeled with a periodic function? A) the height of a football after it has been thrown B) the height of a person riding on an escalator C) the height of a building after it has been constructed D) the height

Solve 1/3 x = - 4/5?