using scalar multiplication in matrix, how do you solve 2AC? Get AC first then multiply 2 or it should be 2×A by 2×C?​

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.

Need asap. solve for the following inequality

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288