Answer:
s=80
Step-by-step explanation:
5/8ths is .625
80 x .625 =50
-3
-7b = 21
/ -7 / -7
b = -3
sin 25
sin(A − B) = sinA cosB − cosA sinB
sin 155
sin( 180 -25)
A = 180 B = 25
sin180 cos25 − cos180 sin25
Sin 180 = 0
cos 180 = -1
0 - (-1) sin 25
0.