Which equation demonstrates the additive identity property?
(7+4i)+(7-4i) - 14
(7+4i)+0 - 7+4i
(7+4i(1) = 7+4i
(7+4i)+(-7-4i) - 0

What is the area of triangle pqr on the grid? a triangle pqr is shown on a grid. the vertex p is on ordered pair 7 and 6, vertex q is on ordered pair 1 and 6, and the vertex r is on ordered pair 4 and 2. 5 square units 6 square units 10 square units 12 square units

Convert 2000 swiss francs to dutch guilders

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.