book Maths Puzzle Numerical Ability

Graph. Identify the conic section and describe the graph and its lines of symmetry. Then find the domain and ranger
3y squared- xsquared =25

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(4+i)times (4+i)times (4+i) Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.