Answer: tan 1 radians = 1.557, tan 1 degrees = 0.017
4a + 2b = 10
you are solving for b
isolate the b
subtract 4a from both sides
4a (-4a) + 2b = 10 (-4a)
2b = 10 - 4a
divide 2 from both sides to isolate the b
2b(/2) = (10 - 4a)/2
b = (10 - 4a)/2
b = 5 - 2a
C) b = -2a + 5 is your answer
hope this helps
70
make 30 minutes into an hour then divide 140 by 2
140/2=70
70x1=70
I think its the third one