Kieth is a furniture salesman. His weekly pay is $400 plus 4.5% of his total sales for the week. Kieth sells d dollars worth of furniture during the week. Which function ƒ(d) can be used to determine his pay for the week? can someone please help me with this?

Mp model with mathematics explain how the number of text messages dario sent and the cost form an arithmetic sequence. then write an expression to find dario's text messaging bill if he sends n text messages over 250.

Does anyone know how to do geometryme with this problem

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 %