38= 19+19.................
Given equation is y=2x+7 and 
Let's simplify the 2nd equation
before we can start graph so that calculation will be easy

multiply both sides by 2 to cancel out fractions

y=2x+7
which is exactly same as the first equatoin so graph of both will be exactly same and solution will be infinitely many solutions.
y=2x+7 has y-intercept 7 so first point will be (0,7). Slope is 2 so rise 2 unit up then 1 right and graph the new point.
16x + 33y = 260, I think this is correct. Hope this helps!:)

is a fraction with the denominator 6. It is less than one (5/6 = 0.83 [rounded]. 0.83 is less than 1) but greater than

(3/4 = 0.75. 0.75 is less than 0.83)
Note: To turn a fraction into a decimal you simply divide the numerator by denominator. (
→ numerator/denominator → (decimal)