exam Maths Puzzle Numerical Ability

A box contains one 2-inch rod, one 3-inch rod, one 4-inch rod, and one 5-inch rod. What is the maximum number of different triangles that can be made using these rods as sides?

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exam Other Question

can you help me graph the equation usin the slope intercept or using the intercept procedure (finding the x and y intercepts by substitutng zero)
4x+y=5
3x-2y=6
3y=5
y=2x+8
Solve the system by substitution.
x + 5y = 0
-2x - 4y = 6