exam Maths Puzzle Numerical Ability

Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph.

7.1x - 3.9y = 1.4

Any help with this would be appre

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exam Other Question

My son had this problem on a test, can you help?

Carla drove to the mountains, averaging 30 mph. Coming back by the same roads, she averaged 20 mph. The total driving time was 5 hours. How far did she travel one way? can you give me an example so I can do my homework on inequalities.
for example: 3<1/2 + a=