50 points could someone me with this? i'm being timed. i know it's a trig question but i don't know how to set it up.

jonathan sets a camera on a tripod to film a bird in a nest. the camera is 1.8m off the ground and 16.4m away from the tree. the angle of elevation from the camera to the bird's nest is 29°. how far above the ground is the bird's nest? round your answer to the nearest tenth of a meter.
a) 7.3m
b) 9.1m
c) 10.9m
d) 14.3m

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered