Help with this pls geometry!!

548

Step-by-step explanation:

First, the sides:

7 × 12 = 84

84 × 2 = 168

7 × 10 = 70

70 × 2 = 140

10 × 12 = 120

120 × 2 = 240

Add:

168 + 140 + 240

 ^         ^

     308  +  240

            548  

Hope this helped.

75,000,000,000.00

Step-by-step explanation:

This means to sum the two values; to put in decimal, we include two zeros;

15,000,000,000.00 + 60,000,000,000.00

=75,000,000,000.00

I hope this helps.