The last one is wrong because a triangle is a paralellogram and not a quadrilateral. Please mark as brainliest. :)
The sale price would be $7.70. the sale is 30%off, so the discount would be o.3 x 11. The sale price itself would be 0.7 x 11. Therefore, 0.7x11 is $7.70 and that is the sale price
To answer the question we make the sum on the left side of the equation:

Since both sides are exactly the same. this equation is always true.
V=BH
The base is 25 square feet because 5*5=25. The height is x feet. The volume is 62.5 cube feet.
62.5=25*x
2.5=x
X should equal 2.5 feet.
Your answer is 22 x 18 x 9 = 3,564