Is 5 a solution to the equation x + 3 = 8

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4