<span>2st−4s+9t−<span>324
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Answer: B
Step-by-step explanation: to find the mean you add all of the values and divide it by the number of values you added. so it would be (13+14+14+14+14+14+15+15+15+15+15+15+16+16+17)/15 which equals 14.8
18 weeks. All you need to do was 60 divide by 15 and you get 4. You taake the 72 kilograms and divide that by 4 and you should get the weeks.
Geosphere hydrosphere atmosphere Cryosphere biosphere
