one interior angle = 30° <==== this one is given
second interior angle = 180 - 40 = 140° <=== interior angle + exterior angle = 180
third interior angle = 180 - 30 - 140 = 10° <=== angles in a triangle = 180
25 people leaving $15 for the boat rental and that still leaves you a remainder of $10
7.8+3.5(6.8)-1.5
7.8+23.8-1.5
31.6-1.5
30.1
the second slide is A. 22
and the last one is x=81 z=99 and y=68
hope this helps
