Help me plz!!! I am doing a Unit Test on Khan and I need help so bad. I need help of how to do it!

111 thirty dollars is to be divided among three girls and two boys so that each of the girls receives twice as much as each of the boys. how much does each receive?

Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1

Hassan bought a package of tofu. the temperature of the tofu was 14° celsius when hassan put the package into the freezer. he left the tofu in the freezer until it reached –19° celsius. which expressions explain how to find the change in temperature, in degrees celsius, of the package of tofu? select three that apply.