IM STUCK ANF I DONT KNOW WHAT TO DO​

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 %

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?