What is the value of x in this question

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

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

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?