Which measure is the best estimate of the area of the banner in square meters? can you show me how to do it ?

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

In need of in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?