Joe earned $130 one week and $125.50 the next week. After depositing these amounts in his account, he had a total of $335. How much was already in his account before he deposited the $130 and $125.50?

Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %