1)
3)
let's recall that the conjugate of any pair a + b is simply the same pair with a different sign, namely a - b and the reverse is also true, let's also recall that i² = -1.
Answer:
Step-by-step explanation:
1 yard = 3 feet
2.5×18=45 feet
45÷3= 15 yards
Answer:
B
Step-by-step explanation: