A piece of wire is bent to form a square of area 121 square centimetres. Calculate:
The length of each side of the square;

The perimeter of the square.

The same piece of wire is bent to form a circle.

Calculate:
The radius of the circle;

The area of the circle.

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

Afarmer has a large field that is x feet in length. he wants to fence in a rectangular section in the middle of the field , leaving a length of 100 feet of open field behind each end of the fenced rectangle. he also wants the width of the fenced-in space to be 100 feet less than its length. find the expressions to represent the length and width of the fenced section of the field

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?