The african bush elaphent weighs between 4.4 tons and 7.7 tons what are it's least and greatest weighs , rounded to the nearest ton

Ricardo ran the 400 meter race 3 times his fastest time was 54.3 seconds his slowest time was 56.1 seconds if his average time was 55.0 seconds what was his time for the third race

Ineed i been stuck on this question since yesterday

Is the power produced directly proportional to the wind speed, give reasons for your answer?