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Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

What is the sum of the geometric series in which a1 = 7, r = 3, and an = 1,701? hint: cap s sub n equals start fraction a sub one left parenthesis one minus r to the power of n end power right parenthesis over one minus r end fraction comma r ≠ 1, where a1 is the first term and r is the common ratio