Hi! can someone help me pls? :)

A. 6.407
B. 6.47
C. 6.6
D. 6.7

In the diagram below, tan θ = sqrt 3. what is the value of m?

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.