Find the length of the third side. If necessary, round to the nearest tenth.
15
12

Lorne subtracted 6x3 – 2x + 3 from –3x3 + 5x2 + 4x – 7. use the drop-down menus to identify the steps lorne used to find the difference.

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?