Part A
We need to find the sale price of the tablet, i.e., after a discount of 30% was applied.
When we apply a discount rate d to a price P, the sale price S is given by:
[tex]S=(1-d)\cdot P[/tex]In this problem, the original price of the tablet, in dollars, is:
[tex]P=185[/tex]And the discount rate is:
[tex]d=30\%=\frac{30}{100}=0.3[/tex]Then, the sale price is given by:
[tex]S=(1-0.3)\cdot185=0.7\cdot185=129.5[/tex]Therefore, the sale price of the tablet is $129.50.
Part B
Now, we can use the same formula to find the sale price of the camcorder, using:
[tex]\begin{gathered} P=140 \\ d=0.3 \end{gathered}[/tex]We obtain:
[tex]S=(1-0.3)\cdot140=0.7\cdot140=98[/tex]Therefore, the sale price of the camcorder is $98.
