Apolyhedron with one pentagonal base is a: choose the best answer from the options below: a pentagon b cube c pentagonal pyramid d prism

Can someone answer it, and plot it, for 20 points and brainliest answer? p.s. they're the same ! : )

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities