How do you find the domain & range for #f(t)=sec(pit/4)#?

Question and answers are in the attached picture. you so much in advance.

You spin the spinner shown below once. each sector shown has an equal area. what is p(beaver ) p(beaver)? if necessary, round your answer to 2 2 decimal places.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?