No they are not quivalent
Should be B the total numbers of boxes filled with reams
After 6 years, the hourly rate should be 34.69 (or something around that since you may want to round)
The y intercept and the gradient
Yes, for triangles to similar two angles have to be the same, in this case, they both have 55 and 30 degrees), this makes the third angle the same. Triangles angles add up to 180 degrees and if you subtract 30 and 55 from 180..
180-30=150-55=95
95+30+55=180
