All the points touch with -2,-1,1,2 and 12
To answer this you can use a guess and check strategy.
Start with 5 minutes using it (25% lost) and 10 minutes charging (20% gained).
Try 7 minutes using it (35% lost) and 14 minutes charging (28%).
Next, 9 minutes (45%) and 18 minutes(36%).
10 minutes (50%) and 20 minutes (40%). This is the difference.
She used it for 10 minutes and charged it for 20 minutes.
1. 40m^2 2.150ft^2 3.99in^2 4.70m^2
Answer:
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6 goes into 516 86times.You only divide 516/6
