BRAINLIST ASAP
i need the answers to 6 and 7 please :))

Twenty-five percent of the customers entering a grocery store between 5 p.m. and 7 p.m. use an express checkout. consider five randomly selected customers, and let x denote the number among the five who use the express checkout.

Which math sentence can be used to determine if the triangle is a right triangle?

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