What is the sum of the first n terms of this sequence 3,4,5,6,7.///

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

We just started the introduction into circles and i have no idea how to do this.