Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their ages now?

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