Avery cycles 2 kilometers during each trip to work. After 2 trips to work, how many kilometers will Avery have cycled in total?

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Ill mark the brainliest if you me with the these three questions 7,8,9

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