-1.424-(-2.9)-0.576
plz show work​

0.9

Solution:
First remember that a negative times a negative is positive (-)(-)=(+) and that a positive times a negative is a negative (+)(-)=(-)
Solve
-1.424+2.9-0.576=0.9

The answer is 0.9
Answer

In the first triangle 80+20+p=180 (since sum of all angles of a triangle is 180)so p= 80also in second triangle 55+45+q=180 (since sum of all angles of a triangle is 180)so q=80so we can conclude that p=80 degrees q=80 degrees so p=q=80 degreeshence option b is correct