His pay is D - $690, because 40x15=600 and then you add 3 hours of double pay (30x3=90), so 600+90=690
<span> Bars are found in approximately two-thirds of all spiral galaxies.</span>
1. Decreasing the temperature of the water.
2. One new atom with a large nucleus forms.
3.The reaction is an example of oxidation.
Animals and Plants won't have a place to live, get food and resourses. Some organisms won't have anyshelter, because some live in the water.
