Answer: Increase (+)
Explanation:
The Government component of the Aggregate Demand refers to money spent by the Government/ Public sector to provide certain needs for the economy such as Education, Defense and Healthcare.
When the government spends on infrastructural development such as the scenario described in the text, they are engaging in a form of spending known as Government Investment. This will increase the amount of G in the aggregate demand model.
10-15 push ups: it's because pull-ups are taxing for an 8 year old, using my brother for an example who can hardly lift himself up. Sit-ups are taxing on the back due to the amount of muscular endurance and strength while a mile running-I laugh- converted to meters is approximately 1609 meters. I'm in Junior high yet I can only do 900. Thus, it can be concluded the most appropriate activity a third grader could handle is a simple push-up.
Kinked demand
I hope that helped