Please help, (3^3/4 / 3^3/8) ^4/9 as an exponent with a single base, 3^x

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

How can you construct perpendicular lines and prove theorems about perpendicular lines

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