Can you please check over my answer for volume and help me with the surface area?

the surface area of the figure is 622 m ^2

the volume of the figure is 494 m ^3

Step-by-step explanation:

-you find the surface area for the rectangular prism and the triangular prism and add both answers.

- R.P S.A : 382 ^ 2 382m ^2 + 240m ^2 = 622 m ^2

- T.P S.A : 240 ^ 2

-same thing with the volume,find the volume of the rectangular prism and the triangular prism and add those answers to find the total volume of your figure.

- R.P V. : 380 m^3 380 m ^3 + 114 m ^3 = 494 m ^3

- T.P V. : 114 m ^3

a. she will receive a refund of $278.

step-by-step explanation: