3squared square root x minus 12 equals negative two

Me what is the value of x? showing work would be appreciated - ! : )

4+(2+x) can you me solve this problem

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