exam Maths Puzzle Numerical Ability

-5x+3y=30

x-intercept:
y-intercept:

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exam Other Question

Gavin and Grace, brother and sister, jog to school every day. Gavin jogs at 5 mph and Grace at 2 mph. When Gavin reaches school, Grace is 3/4 mile away. How far is the school from their home? What is the relationship between y=4x+24 and 2y=8x+12? Are they perpendicular, parallel, or neither? Please answer as soon as possible. Thank you!!