I NEED HELP, I DON'T KNOW HOW TO SOLVE IT:

2730

Step-by-step explanation:

Surface area of the base 30x26/2=390

Surface area of the top 3 triangles 3x 30 x 52/2 =2340

Total surface area is = 2340 + 390 = 2730

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

a. is correct