The number of cows a farmer has on his farm over several years can be modeled by an arithmetic sequence. During the 2nd, 5th, and 7th years, he has 30, 39, and 45 cows, respectively. How many cows did the farmer have in his first year on the farm?

Identify the graph of y = ln x + 1.

Can someone pls ! pls answer all. no explanation needed..

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 %