1) the center of a circle is at (-10,6) and it has a radius of 4. what is the equation of the circle?
2)(look at 1st attached pic)
0.6
1.4
1.2
0.7
3) (look at second attached pic)
4(look at last attached pic)

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.