There are 600 children on a field. 30% of them were boys. After 5 teams of boys joined the children on the field, the percentage of children who were boys increased to 40%.
How many boys were there in the 5 teams altogether?
190​

abraham lincoln issued the preliminary emancipation proclamation on september 22nd, 1862. it stipulated that if the southern states did not cease their rebellion by january 1st, 1863, then proclamation would go into effect.

"choosing is refusing" means individuals face an opportunity cost with each decision they make. economists state that every decision involves trade-offs. opportunity cost is the least desirable alternative given up as a result of a decision.

if im not mistaken its a. collective emotional arousal

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