F(t)=2t−3 f(7)= i need some im not sure what to do here

Find the value of 1715⋅211.though these numbers aren't quite as nice as the ones from the example or the previous part, the procedure is the same, so this is really no more difficult. give the numerator followed by the denominator, separated by a comma.

The dash figure is a dilation if the original figure. find the scale factor. classify the dilation as an enlargement or a reduction

Which of the following graphs could represent a cubic function?