The perimeter is 38.4 inches
326=12m+6c+x The reason your x does not have a number is because it is unknown so in order to solve for x you need to get rid of the 12m+6c so in order to that you can divide it on both sides so you would get 326/12m+6c=x the divide your numbers 18.1=x but you cant have a tenth of a djembe drum so you would have to round up to 19.
Answer:
767.76 mL
Step-by-step explanation:
625.05 + `142.71 = 767.76
