The measure of an angle is 88.9°. what is the measure of a supplementary angle?

The sum of supplementary angles is 180°. To find the measure of the supplementary angle of 88.9°, make an equation.
a + 88.9 = 180

Solve for a
a + 88.9 = 180
a = 180 - 88.9
a = 91.1

The measure of the supplementary angle is 91.1°

What is the number for e if you don't knkw then there is no answer you need that number to plug in then multiply that number with 5.9 then add 10