exam Maths Puzzle Numerical Ability

create a graph of the following linear equalites
3x + 4y <12
x + 3y < 6
x > 0
y > 0

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exam Other Question

How much water must be added to 100ml of 50 % acid/water solution to obtain a 30% solution. AMY DRIVES 330 MILES USIN 15 GALLONS OF GAS. HOW MANY GALLONS OF GAS SHOULD SHE EXPECT TO USE ON A SIMILAR TRIP OF 462 MILES?