Why did the Mongols repeatedly fail to conquer the Sung dynasty before Kublai Khan's conquest? O The Sung army had trebuchets.
O The Sung army had a blockade
O The Sung army had battering rams.
O The Sung army had greater numbers.

the cost of college has risen faster than inflation for many years.

the high price of student services and administration are two reasons for the rapid increase in cost.

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8 years 100% positive

explanation:

in 1859, brown and 21 of his followers attacked and occupied the federal arsenal in harper's ferry. their goal was to capture supplies and use them to arm a slave rebellion. brown was captured during the raid and later hanged, but not before becoming an anti-slavery icon. abolitionist and insurrectionist

explanation: