Directions: Simplify the following monomials (if possible). 13.) 13y² + 9y + 4y² - 31y
14.) 10m²n + 7mn² - m²n
15.) Find the sum of 16y² and -5y²
16.) Find the difference of 10x²y and 2x²y

ANYONE PLEASE HELP ME I REALLY NEED THE ANSWER NOW BECAUSE I HAVE TO PASS THIS TOMORROW AT MY 1ST CLASS:( EVERYONE HELP ME:(
I'LL MARK YOU AS THE BRAINLIEST!​

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

An object is translated by (x + 4, y - 2). if one point in the image has the coordinates (5, -3), what would be the coordinates of its pre-image? (9, -5) (1, -5) (9, -1) (1, -1)

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4