does anyone know of market research studies in the LA area?

I have always heard of market research studies in which people try food or products and get paid for it. does anyone know about any in the los angeles area? I kind of need the extra money.

Wrong location for this question. 2 pts.

The marketing research department for a computer company used a large city to test market their new product.?

The marketing research department for a computer company used a large city to test market their new product. They found that the demand equation was p = 1296 – 0.12x^2. If the cost equation is C = 830 + 396x, find the number of units that will produce maximum profit.
Haha. That’s the given question. I don’t know anything more than that.

if u wd clarify wot d variables stand for,
then only wd i b able 2 answer…