What is the coefficient of the x^5y^5 term in the binomial expansion of (2x-3y)^10

The data in the table represent the height of an object over time. which model best represents the data? height of an object time (seconds) height (feet) 05 1 50 2 70 3 48 quadratic, because the height of the object increases or decreases with a multiplicative rate of change quadratic, because the height increases and then decreases exponential, because the height of the object increases or decreases with a multiplicative rate of change exponential, because the height increases and then decreases

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)