Answer:
3:4
Step-by-step explanation:
(1/7)/(4/21) = (1/7)×(21/4) = 3/4 = 3:4
Its H and K.... they are the only 2 dots that are not in the close group
The answer is D. 18.5
How? Because you have the numbers in order and cross the out it leaves you with 17, and 20 and the number between can be 19 or 18.5.
Hope I helped
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Each day it decrease $2. So just multiply $2 x 4 days. It changed a total of $8.
