Help me with this.

Which table represents a linear function? i'll give brainliest to first answer ^'^

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount