Jasmine works at the public library after school. she makes $7.00 per hour. she cannot work more than 15 hours per week. if y = 7x represents jasmine's earning, what are the values in the domain?

a.x ≤ 15

b.0 ≤ x ≤ 15

c.1 ≤ x ≤ 15

d.all real numbers