exam Maths Puzzle Numerical Ability

The relative density of an object may be defined as its weight in air Wa, divided by the difference of its weight in air and its weight when submerged in water, Ww. For a lead weight, Wa = 1.097 Ww. Find the relative density of lead.

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can you help me solve the square root of xy^-1 divided by the square root of x^3 y write the equation of the line with slope -2 and y-intercept (0,0). Then graph the line.

0=-2*0+b
b=0
b=0 y-intercept


y=-2+0
y= -2x

double checking to see if i'm rig