What is Sn for the arithmetic series in which a1=16 , an=98 and n =13?

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

Ihave trouble finding the nth term of a linear sequence