11. how many times could haley fly between the two flowers in 1 minute (60 seconds)?

That depends on the speed at which Haley flies.

The faster Haley flies, the less time it takes for her to cover any particular distance.  

At higher speed, She could visit more flowers, or bounce back and forth between the same two flowers more times, in one minute.

answer: 802.3 kilo joules of energy represents 191.75 kilo calorie of energy.

explanation:

energy released during combustion of one mole methane = 802.3 kilo joules

if 1 kilo joule = 0.239006   kilo calorie

then ,802.3 kilo joule will be = 802.30.239006 kilo calorie

802.3 kilo joule = 191.75 kilo calorie

hence, the energy in kilo calorie is 191.75 kilo calorie.

15.3 cos 65 degrees trig