What do you call powers that are shared between the national and state government? A expressed powers B concurrent powers C reserved powers D super powers

reserved powers

Explanation: So long as their laws do not contradict national laws, state governments can prescribe policies on commerce, taxation, healthcare, education, and many other issues within their state. Notably, both the states and the federal government have the power to tax, make and enforce laws, charter banks, and borrow money

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.

equal area projections

equal-area projection. a projection in which regions on the earth's surface that are of equal area are represented as equal.