Mr. Peterson takes his four daughters to a carnival. The admission to get in was d dollars and each bracelet for
rides was $15.99. Write an expression that can be used to
find how much Mr. Peterson spent at the carnival (assuming
he went on the rides with his daughters).

Two customers went to a post office. first customer paid $12 for 14 and 5 envelopes the second paid 24.80 for 10 postcards and 15 envelopes. what is cost of each envelope?

Is this a polynomial function? i need to know asap

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 %