Answer:
Equality
Inequality
Step-by-step explanation:
Answer: Is 72 21/64
Multiply 12 times 6 that's 72. Then multiply 3 times 7 and 21. And then multiply 8 times 8 and get 64.
Step-by-step explanation:
the area of this rectangle is
(10 + 2x)(8 + 2x) = 168
80 + 20x + 16x + 4x² = 168
4x² + 36x = 88
because for the whole length you need to add x twice (left and right). the same for the width (top and bottom).