I need the anwser 1-5 and also how did u get that answer

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.