Answer:-12 yards
Step-by-step explanation:7 yards - 19yards
you are at 0 after you subtract 7 and you still need to subtract 12 more and that is how you get -12 subtract 12 frome 0 and you get -12
7-19=-12
Answer:
Step-by-step explanation:
a² + b² = (a + b)² - 2ab
The volume of the square pyramid is 147 centimeters.