Answer: two of them are positive and negative
Step-by-step explanation: because there is -30 and -25 that is negative and 1 and 20 that are positive
Answer:
surface area = 6a^2 = 6
hence are = 6 unit.sq
Answer: 34.125
Step-by-step explanation:
A trick would be, knowing that 3.5x2=7, multiply 9.75x7=68.25. Divide that by two and get 34.125.
20
RN is 1/4 of HS, and 5x4=20.