exam Maths Puzzle Numerical Ability

Please help me solve this equation:
Solve the Inequality

6(r-8)+3>7(r+3)-26

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exam Other Question

Please help with this problem of solving nonlinear systems of equations:
14. 3x + y=7,
4x^4+ 5y=24 A man drives out in the country at an average rate of 40 mph . In th evening traffic he drives back at 30 mph . If the total traveling time is 7 hours , what is the distance travel