Answer:
1- The proposal would be to improve education in Brazil through full-time school education, where children and teenagers could have different classes and courses, such as courses in foreign languages and professional training, with monetary incentives for children who got good grades.
2- The main challenges foreseen for the inclusion of the integral school in Brazil could be population adhesion, lack of funds and legislative bureaucracy. Such challenges could culminate in school dropouts, lack of resources to hire new professionals, school structure and materials, in addition to a long delay in the approval of the educational change project.
3- The difficulty of solving social problems in any society is a complex task because such problems occur for structural reasons that would impact the way that society organizes itself politically, socially and culturally. There are also institutional problems such as political corruption that makes it difficult to develop a fairer and more egalitarian society for the entire population.
The executive branch of the U.S. government is responsible for enforcing laws; its power is vested in the President. The president usually lasts 4 years until further votes. The President acts as both the head of state and commander-in-chief of the armed forces. Independent federal agencies are tasked with enforcing the laws enacted by Congress.
The executive branch was to be designed forever because is its strict rules.
Hope it helps
32 different combinations of three cars can the Carsons select if all the cars are to be different colors.
B. 32
<u>Explanation:</u>
As it is given there are four available colours of the car. That means we have 4 cars. 
. Now choose the first car. The no.of way of choosing the first car is equalled to 8 and imagine the first car Colour is black. Now we have a black car so we have to choose from 6 options apart from black.
Now no.of way of choosing the 2 car = 6 and imagine it is blue. Now we have to choose two colour car, so now we have 4 options to choose from. The no.of choosing the car = 4. Now let's calculate the total arrangement - 
. It is the total calculation for three cars.
But we have to know the selection so three cars can also be arranged in 6 ways. So the number of different combinations of three cars can be calculated as 192÷6= 32. This is how the selection is being done.
