Answer:
56.556 square inches
Step-by-step explanation:
Surface area of an open cylindrical pipe is = πdh
3.142 × 1 × 18 = 56.556
Answer:15
Step-by-step explanation: -9<em>X3</em>+12x2-x-2
Answer:x=-8
Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8
