Step-by-step explanation:

A tetrahedron is a shape made out of four triangular faces, and it has a total of <span>six edges
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Answer: option 1.
Explanation:
feasible region is that region which is formed by the lines of constraints.
feasible region is shaded in the attached graph
inequalities becomes equalities to draw the graph
and lines will head towards the origin if constraint satisfied by putting x= 0, y=0
and on the contrary lines will move away from origin when condition of constraint does not satisfied.
Answer: 0.5 oz is the weight of one cookie
Step-by-step explanation: If 2 cookies weight 1 oz then 1 cookie weights 0.5 oz.
John has x amount of dogs. Solve for x to find how many dogs john has.