A SURVEYOR STANDS 120 FEET FROM THE BASE OF A BUILDING. ON TOP OF THE BUILDING IS A VERTICAL RADIO ANTENNA. WHEN
HE SIGHTS THE TOP OF THE BUILDING, THE ANGLE OF ELEVATION IS 65
DEGREES AND THE ANGLE OF ELEVATON OF THE TOP OF THE ANTENNA IS
70 DEGREES. WHAT IS THE LENGTH OF THE ANTENNA, TO THE NEAREST
TENTH OF A FOOT?

Trent wants to buy 2 packs of trading cards for 3 dollars each. the trading card packs that trent normally buys tend to come in packs of 6, 10, 12, or 15 cards. after selecting 2 packs, trent found that the first pack of cards cost 25 cents per card, and the second pack cost 30 cents per card. trent uses this information to write the equations below in order to compare c, the number of cards in each pack.

Which one ? is the answer and how to find this answer

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in