1.8>4.7+w

Does anyone know what this may be ? Thank you very much .

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.

Find the roots of the equation below. x^2 - 6 + 9 = 0

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?