Answer: 72cm by 108cm
Step-by-step explanation:
basically, take your numbers so, 4 / 30 in a fraction form, then take a random letter, i'm using n and put n / 540 (this also will be the same for 810!)
n x 30 = 30n, 4 x 540 = 2160, divide that by 30 (which is 72) then do the SAME process but with 810 (which then you get 108) and BAM you got your answer. good luck!
Answer:
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12a) yes, there will be two vanilla cupcakes left over after the baker makes ten more.