What’s the slope (rate of change) for the red?

The equation for two lines in the coordinate plane are 2dx+y=4 and -6x+y=3, where d represents an unknown value. what value(s) of d would make these lines parallel?

Given the following point on the unit circle, find the angle, to the nearest  tenth of a degree, of the terminal side through that point, 0≤θ< 360. p=([tex]\frac{ \sqrt{10} }{4} [/tex]

The drawing plan for an art studio shows a rectangle that is 11.2 inches by 8 inches. the scale in the plan is 2 in.: 5 ft. find the length and width of the actual studio. then find the area of the actual studio.