The medicine capsule shown consists of a cylinder with a hemisphere at each end. the total length of the capsule is 15 millimeters. the diameter is 5 millimeters. which choice is the best approximation of the total surface area of the capsule? use 3.14 to approximate pi.

Take it apart mentally cylinder+2hemispheres 2hemispheres=2half spheres=1 sphere 15=radius of sphere+legnth of cylinder+radius of spehre diameter=5 d/2=5/2=r 15=2.5+legnth+2.5 10=legnth of cylinder surface area of sphere=4pir^2 surface area of cylinder (not including bases) is pidh sphere radius=2.5 SA=4pi2.5^2 SA=4pi6.25 SA=25pi SA=78.5 sphere area SA=5pi10 SA=50pi SA=157 add them 78.5+157=235.5 mm^2

C. expression because any expression or equation may contain more than one variable