6 multiplied by negative 7 would be negative 42. Negative 42 added by negative 8 would be negative 34.
Step-by-step explanation:

Answer:
Step-by-step explanation:
The diameter of a circle is twice the radius, so the statement is false.
Answer:
(2.4, -1)
Step-by-step explanation:
Using midpoint formula plug in the info (x1+x2)/2, (y1+y2)/2
64/49
thats what I got but im not sure