If ∠c and ∠d are vertical angles and m∠c=x and m∠d=−3x+80, what is m∠c?

i'm super lost, can someone ?

Rationalize the denominator- 12x/√x-10

Which is the focus of a parabola with equation y2=4x

Drag the tiles to the boxes to form correct pairs. not all tiles will be used with reference to the figure, match the angles and arcs to their measures. *dpa 124 e0b 114° cob spot xoca 122° c e 2019 orentum arts reserved a 6: 52 pm 6/19/2019 40