Question

Does anyone understand this (photo attached)

Answer 1

An adult and 5 children rent skates. it costs $4 per adult and a total of 16 Dollar...

$\sf \: Equation > 4+5x=16$

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It costs Mikael $4 to make a bike bag and he sells each for 5 Dollar. He has made a profit of 16 Dollar so far...

$\tt \: Equation > (5 - 4)x = 16$

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It was 16°C, it began falling 4°C per hour until it reached 5°C...

$\bf \: Equation > 16 - 4x = 5$