exam Maths Puzzle Numerical Ability

to cover a 6 by 9 plot with dirt 1 foot deep i used LWH but how do i convert cubic feet to cubic yards?

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exam Other Question

sorry i cant seem to figure this one out
SOLVE FOR X

0.05x+0.065(5000-x)=295

THANKS ALOT How do you write a quadratic equation with integer coefficients that could represent the following solution:

x = -1 and x = 3