Ben uses a compass and a straightedge to construct <DEF congruent to <ABC, as shown

  see below

Step-by-step explanation:

The purpose of this construction is to create ΔEJK so it is congruent to ΔBHI. This is done by making EK≅BI≅BH≅EJ, then by making JK≅HI. Since corresponding parts of congruent triangles are congruent, this makes ∠JEK≅∠HBI, hence ∠DEF≅∠ABC.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

pretty sure 750 each month!

step-by-step explanation: