What is the distance between-18 and 15 is equal to

What number must you add to complete the square x^2+12x=16

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?