When would there be only four different equations for a set of math mountain numbers

Askyscraper is 396 meters tall. at a certain time of day, it casts a shadow that is 332 meters long.at what angle is the sun above the horizon at that time?

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.

Iam at home. /: i am playing video games. translate the following statement into symbolic form.