Arestaurant chain ordered 3940 pounds of rice in 20 pound bags. about how many 20 pound bag of rice did the chain order?

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

What numbers are included in the set of integers? what numbers are not included?

Someone me! if you’re smart you can solve this!