volume = 7*7*2 = 49*2=98
she needs to get 98 cubic feet of sand
Answer:
x = 4
Step-by-step explanation:
Distribute parenthesis on both sides of the equation
4x + 4 = 6x - 4 ( subtract 6x from both sides )
- 2x + 4 = - 4 ( subtract 4 from both sides )
- 2x = - 8 ( divide both sides by - 2 )
x = 4
<h3>
Answer:</h3>
, or 
<h3>
Explanation:</h3>
Use the Keep Change Flip method. Change the sign to multiplication and flip the second fraction. 
Multiply the numerators and the denominators separatley. 
This cannot be simplified further, but it can be converted to a mixed number (as opposed to an improper fraction). 