Mr. tan is 55years old and tony is 7 yearas old. in how many years' time will mr tan be 4 times as old as tony?
plzz it's urgent
i don't really know algebra

All per-unit concepts rely on ratios,meaning,to provide a type of measurement

Find the cosine function that is represented in the graph.

If the endpoints of the diameter of a circle are (8, 6) and (2,0), what is the standard form equation of the circle? a) (x + 5)2 + (y + 3)2 = 18 (x + 5)2 + (y + 3)2 = 3.72 (x - 5)2 + (y - 3)2 = 18 d) (x - 5)2 + (y - 3)2 = 32