a. Use the inclusion/exclusion principle.

b. By definition of conditional probability,

Step-by-step explanation:
so sorry
don't know but please mark me as brainliest please
ANSWER: y=6
straight lines are 180° and all the angles in a triangle add up to 180°
I believe that on the shape is length times the width which is 56
In mathematics, number with a symbol of a point, is expressed in decimal form. When they are read, the numbers after the decimal point are read digit after digit. Therefore, in word form, the number is read as: Two hundred nine point one zero six.