If a 30-Foot tree cast an 18-foot shadow, find the length of the shawdow cast by a 27- foot tree

In an experiment you are to flip a two sided coin 100 times and record 55 heads up and 45 tails up determine the theoretical and experimental probability of getting a heads up in the experiment.

The formula for the lateral area of a right cone is la = rs, where r is the radius of the base and s is the slant height of the cone. which are equivalent equations?

Ineed me i stuck and i don’t want to get it wrong