Which graph contains the points of intersection satisfying this linear-quadratic system of equations?

x² + y² = 20
x-y+2=0

graph A

graph B

graph C

graph D

Quick translate "x is 12 units from 20" into an equation. what are the values of x being described? if you can answer any of my other questions that'd be great too

Which shows a reasonable estimation for 124% of 42 using the distributive property?

The diameter of a bacteria colony that doubles every hour is represented by the graph below. what is the diameter of the bacteria after 8 hours? graph of a curve passing through the points zero comma 1, one comma two, two comma four, and three comma eight