You had 22 to spend on seven pencils. after buying them you had 8 how much did each pencil cost

Can some one me, i’ve been asking for so long

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]