The flag pole in front of the school casts a shadow 40 feet long when the measurement of the angle of elevation to the sun is 31°.how tall is the flag pole?

Carli has 90 apps on her phone. braylen has half the amount of apps as theiss. if carli has three timesthe amount of apps as theiss,how many apps does braylen have? let b represent the number of braylen's apps and t represent the number of theiss's apps.