If the dimensions given are measures in feet, which expression represents the area of the shaded region? A rectangle has a width of 7 x minus 5 and height of 4 x. A smaller box is inside of the rectangle with side lengths of x.
A 27 x squared minus 20 x
B 18 x squared minus 15 x
C 20 x minus 27 x squared
D 15 x minus 18 x squared

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%

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?

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x,and the distance in miles, y, that he travels.