Answer:
3d
Step-by-step explanation:
$60 + $145 = $205
$205 x 3 = $615
Great Circle - A
Sphere - B
Ellipse - C
Circle - D
Triangle - E
A triangle
A on edge
(sqrt(x) +1)(sqrt(x)-2)
Negative numbers are anything below 0. They always have a minus (-) sign before them.
Positive numbers are anything above 0 and can sometimes be written with a plus (+) before them but not normally
