GIvInG Brainliesst to the people who help and explain

1464 inch²

Step-by-step explanation:

given first prism sides: length - 10 width - 10 height - 10

given second prism sides: length - 12 width - 12 height - 12

using the formula below:

for the first prism:

2(10*10+10*10+10*10)

600 inch²

for the second prism:

2(12*12+12*12+12*12)

864 inch²

So total surface area is (864 inch² + 600 inch²) =1464 inch²

6 adults and 9 children went.

a + c = 15

12a + 9c = 153

12(6) + 9(9) = 153

72 + 81 = 153

10 - 8 = -2

  8 - 6 = -2

etc, so -2 is the common difference

step-by-step explanation: