Robert is preparing a posterboard presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 in.² to find how much space Robert will have left for his presentation if he uses squares with 7 inch sides Evaluate 720-10S small two on top when S equals seven.

Question

Robert is preparing a posterboard presentation. He wants to make a decorative pattern with 10 squares to fill part of the poster. The area of the poster board is 720 in.² to find how much space Robert will have left for his presentation if he uses squares with 7 inch sides Evaluate 720-10S small two on top when S equals seven.

Answer 1

To evaluate the expression, substitute S=7:

720 - 10(7^2)

Solving the exponent first:

720 - 10(49)

Now perform the multiplication:

720 - 490

Finally, subtract:

= 230 in.²

Robert will have 230 square inches of space left for his presentation.