Nikki graphed y=-4x2-16x-12 which best describes the graph of the equation

In ΔCDE, m∠C = (9x+11) ^{/circ} (9x+11) ∘, m∠D = (3x-15) ^{/circ} (3x-15) ∘, and m∠E = (2x+16) ^{/circ} (2x+16) ∘. What is the value of x?

Angela goes to the garden. There is a fountain. A circular fountain with a 10m radius lies alone in the center of a circular park with a 200 m radius. Calculate the total walking area available to the park visitors.

5/2 times what equals 20

Which is grater 2/3 or 2/4

What is the value of the y-coordinate in this system of linear equations:6x+10y=-32 and 6x+9y=-27

Write - 72=2y^2-16y-20x in standard form

Whats an expression of 7 and x

5 (+6) = 50 is the answer 4,30,20, or 5

The product of a number increased by 10 and 4 is 22

ABCD is a rectangle. The length of is 8 units, and m∠ABD is 67°. The length of is units, and m∠CBD is °.