ostindollars?A) $0.1 B)$0.15C) $0.330秒3. Square A‘s perimeter is 9 times as large as that of Square B. If the length of a side of SquareB is 1, what is the area of SquareA??A)9 B)81 C) 144 D) 129630秒4. In a book fair, Elena buys 4 science books for every 9 math books she buys. If she buys 36 science books,? she buys _?_ books total.?A) 16 B)52 C)81 D)11730秒5.Ifamaphasascaleof1cmto20km,thenonthismaphowfarapartaretwotownsthatareactually138kmapart?A) 6.9kmB)6.9cm C)6.6cm30秒6. The number N when rounded(四舍五入)to the nearest hundredth is 20. 16. When rounded to the nearest thousandth, N is at most______?A) 20.159 B) 20.160 C) 20.164 D) 20.16530秒7.Twointegersbetween10and99havethesamedigitsbutindifferentorder.Whatisthegreatestpossiblevalueofthedifferenceoftheseintegers?A) 63B)72 C)7340秒
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