PLEASE HELP ME ASAP Explain how to write:
a. The sum of a number and the product of the same
b. The ratio of twice a number and 5

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

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 %