What kind of angle pair do they create?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

If a and b represent positive real numbers what is the inequality when solves for v

The blue lake trail is 11 1/2 miles long. grace has hiked 1 1/2 for 2 hours. how far did she from the end of the trail