1) A couple plans to have 7 children. Find the probability of having at least one girl.

a) 0.9922

b) 0.8822

c) 0.7722

d) 0.6622

2) What is the apothem of a rectangular polygon having an area of 225 square units and a perimeter of 60 units?

a) 6.5

b) 7.5

c) 5.5

d) 8.5

3) A 12-ft high flagpole is standing vertically at the edge of the roof of a building. The angle of elevation of the top of the pole from a point on the ground that is 64 ft from the base of the building is 78° and 50'. Find the height of the building.

a) 112.2 ft

b) 212.2 ft

c) 312.2 ft

d) 412.2 ft