Answer:
3. Reflexive property of congruence
(since the statement states that a segment is congruent to itself)
4. SSS
(since 3 sides of one triangle are congruent to three sides of the other triangle)
20
Step-by-step explanation:
https://www.calculatorsoup.com/calculators/geometry-plane/distance-two-points.php
There are a lot of combinations possible
One of them would be that each roll of quarters is $10 and each roll of pennies is 50cents so she could have 12 rolls of quarters and 2 rolls of pennies