4×4 square is divided into 16 equal parts. One 1×1 square is placed in the center, as shown in the picture. Calculate the number of rectangles.

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

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?