Abuilding casts a shadow 48 feet long. at the same time, a 42‐foot‐tall flagpole casts a shadow 9.6 feet long. what is the height of the building?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?