exam Maths Puzzle Numerical Ability

Which does not represent a possible intersection of two spheres?
choices
0 points
1 point
2 points
infinitely many points

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exam Other Question

18 and three times d apples are sold at the market for a 8-pack $4 , a 10-pack for $5 ,and a12-pack for $6. write the equation for the function describing this price structure. Let p stand for the pric