exam Maths Puzzle Numerical Ability

can you help me multiply using the vertical method?
(2r-3s)(4r^2+6rs+9s^2)

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exam Other Question

the distance from philadelphia to sea isle cit is 100 miles, a car was driven this distance using tires with a radius of 14 inches. how many revolutions of each tire occurred on the trip?

thank you so much for the help Solve the open sentence and name and graph the solution set. Please and thank you, to I can have a clear understanding of what I am doing.

|3k+4|≥8