If x^2 = 30, what is the value of x?

Dylan and dusty plan to take weekly surfing lessons together. if the 2-hour lessons are $20 per person and they plan to spend $100 each on new surfboards, what is the maximum number of lessons the two can take if the total amount spent for lessons and surfboards is at most $480?

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)