The surface area would be: base area + 4×sides area.
In this case,the equation for the total surface area:
(4×4)+(4×7.3)/2
=16+14.6
=30.6cm^2
Thus the total surface area is 30.6 cm^2.
On the other hand, the volume is : 1/3 x base area x Height,which should be written as:
1/3×(4×4)×7
=1/3×16×7
=37.33333...
≈37.33cm^3(correct to the nearest hundredth)
Thus the volume is 37.33 cm^3.
Hope it helps!