Giving 40 exponential function has a form f(x)=ab^x where a and b are constant values for the function. the table of values shown represents an exponential function. what is the equation for the table?

Can someone answer these problems for me

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

Which fraction is equal to 1hole and 2/5? a.3/5 b.75 c.57 d.73