Answer:
The sale price is 79 dollars :P
Step-by-step explanation:
uhhh just subract 100 - 21 and yea you should get 79. :)
Answer:
Area: x^2+x-6
Perimeter: 4x+2
Step-by-step explanation:
Area: multiply x+3 and x-2 and combine the like terms
Perimeter: multiply the length and width by two, then combine the like terms.
Answer:
The approximate value of the area is 
Step-by-step explanation:
we know that
The area of the circle (landing pad) is equal to

we have

substitute

----> exact value of the area
Find the approximate value
assume 
------> approximate value of the area
6 multiplied by negative 7 would be negative 42. Negative 42 added by negative 8 would be negative 34.