exam Maths Puzzle Numerical Ability

An oil tank was 1/10 full then 280 gallons was delivered which made it 8/10 full. If x= the capacity of the oil tank, what equation can be used to find the capacity of the tank?

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exam Other Question
a painting is 3 inches longer than it is wide. it is set in a rectangular border that is 2 inches wider than the painting on each side. if the area of the border is 100 inch^2 what are the dimensions of the painting HOW DO I WORK THIS OUT



-2(2g - 6) = 10