Aprofessional baseball game of lacrosse has 60 mintues of playing time. it is spit into 4 equal period of time. how many mintues are in each period? explain

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

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

What is the difference between the equations of a vertical and a horizontal line?