The price of a barry bonds baseball card into thousand and one was $50. it is now being sold for $30. find the percent decrease in the cost of the card

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10