The mathematics department sponsors Math Family Fun Night every year. In the first year, there were 35 participants. In the third year there were 57 participants. a) Write an equation that can be used to predict the amount of participants, y, for any given year, x.

b) Give an explanation of the meaning of the slope in this problem.

c) What does the y-intercept represent here?

d) How many participants would they have in the fifth year?​

How do i do this activity, is appreciated

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

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