The phrase "and class are often" is correct and usable in written English.
It can be used in contexts discussing social structures, education, or demographics where class is a relevant factor.
Example: "In discussions about social mobility, income and class are often considered significant barriers to success."
Alternatives: "and social class frequently" or "and socioeconomic status are commonly".
In these areas, some displaced teachers, who themselves have fled the fighting, are involved in the schooling and classes are often given on a "double shift" basis to help more children attend school.
Coaches and classes are often available at gyms and community centers as well, if you want to improve your game even further before playing with others.
Although employment status and occupational social class are often used as measures of affluence, in our models where other markers of SEP were mutually adjusted for, these may more accurately reflect a measure of time available for other tasks, rather than affluence (Cheng et al., 2007).
In fact, the studies on education, adolescence and to some degree social class are often nested within studies of economic status and/or gender.
Components made from this material class are often subjected to complex thermo-mechanic fatigue (TMF) loads.
Assistant Secretary of Education Tom Luce said they reflected a national shortage of fully qualified science teachers, especially in regions of poverty, where physics and chemistry classes are often taught by teachers untrained in those subjects.
The converted lecture hall can be hard to find and nearby classes are often disrupted when her performers are in full swing.
The insect-specific Delta and Epsilon GST classes are often involved in detoxification of xenobiotics and the limited number of GSTs from those classes may point at the unique ecological niche and highly specialized diet of Galleria which is devoid of any (potentially toxic) plant secondary metabolites.
In Mediterranean extensively used areas, the analysis of landscape features and related public preferences is complex, as the landscape pattern is highly fuzzy and land cover classes are often mixed.
Business schools often restrict their classes to their own students because, in contrast to Ph.D. programs, M.B.A. students often pay a lot for tuition, and the best classes are often fully subscribed.
