exam Maths Puzzle Numerical Ability

the formula m=1/5t can be used to determine how i far m, miles you are form lighting when its thunder takes t seconds to reach your ears if it takes 4 sec for the sound of thunder

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exam Other Question

A long distance phone call costs $0.96 for the first minute and $0.72 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding $6. This problem has been causing me some problems can you help me with it?
x + 5 > 2x + 1 and -4x < -8
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This is all one problem including the and. The first symbol is les