Which of the following is the conjugate of a complex number with 2 as the real part and 7 as the imaginary part?

a. 2 + 7i

b. - 2 - 7i

c. - 2 + 7i

d. 2 - 7i

How old is rob if he was 45 years old eighteen years ago

What is 11-5a+3b-9h simplified

What is the decimal number of 3 cents

The diagonals of a trapezoid are perpendicular

Building A is 880 ft tall and contains 71 stories. Building B contains 100 stories If the two buildings have the same number of feet per floor approximate the height of building B. whats the approximate height of buidling B

A teenager consumes 20% of her calores each day in the form of protein. If she is getting 700 calories a day for protein, how many calories is she consuming per day?

What is 45% of 175? -pre algebra

Is n=3 is a solution to the equation or 2n=6

Your friend says the solution to 4 x plus 24 x minus 2 equals 7 left parenthesis 4 x plus 2 right parenthesis is xequals16. Solve 4 x plus 24 x minus 2 equals 7 left parenthesis 4 x plus 2 right parenthesis. What was your friend's likely error?

To students are both working on the same problem a Box of laundry soap as 25% more so in its new Box the new Box hold 2Kg how much soap did the old box hold