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Only in the ones column. Prime numbers aren't multiples of anything but one and themselves.
Let me explain, If 7 x ? = 63, simply search up a division chart or a multiplication chart if there is not else to help. If you don't have access to that, the answer is 9 because 7 x 9 = 63. I hope I helped
To find out what percent 72 is of 160, you can set up a proportion: 72 is to 160 as x is to 100. This can be written as 72/160 = x/100. Cross multiply to get 160x = 7200. Divide by 160 to solve for x, which equals 45. Therefore, 72 is 45% of 160.
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