Is this statement true or false?

the triangle with side lengths of 18 cm, 24 cm, and 30 cm a right triangle.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Amira is painting a rectangular banner 2 1/4 yards wide. the banner will have a blue background. amira has enough paint to cover 1 1/2 square yards of the wall. the school colors are blue and yellow, so amira wants to add yellow rectangles on the left and right sides of the blue rectangle. the yellow rectangles will each be 3/4 yards wide and the same height as the blue rectangle. what will be the total area of the two yellow rectangles?