So if we take 1/4 to be the 100%, what is 2/3 in percentage off of it then?

yes, is a large value, because 2/3 is indeed larger than 1/4, more than twice as large.
Answer:
roots: -4 and 7
Step-by-step explanation:
where the graph crosses the x axis is where the roots are located
128 degrees.
An angle's supplement, when added to the original angle, will form a straight (180 degree) angle.
Answer:
b. none
Step-by-step explanation:
An angle has internal angles adding to 180º.
Those angles only add to 170º so no triangle can be made.