The length of a rectangle is five inches more than four times it’s width. if the perimeter is 90 inches, find its dimensions

Can someone check if i did this correct. it’s number 4 if you’re wondering.

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

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