Ivan stops studying before the point at which his marginal benefits of studying equal his marginal costs. true or false: ivan is forfeiting some net benefits.

TRUE

Explanation:

The best position to stop learning is where MB= MC. If Ivan ends before this stage some of the rewards of further study are given up.

mali had been a state inside of the ghanaian empire. after ghana fell because of invading forces and internal disputes, mali rose to greatness under the leadership of a legendary king named sundiata, the "lion king." the songhai empire, already weakened by internal political struggles, went into decline.