I think the answer could be D
Answer:47
Step-by-step explanation:
14+15+10+8=47
Equation: 4x + 2 = x - 7
Solve equation
Subtract x from both side
3x + 2 = -7
Subtract 2 from both side
3x = -9, x = -3
Solution: the number is -3
64 cm^2. First find the area of the triangular faces by taking a quarter of the base and multiplying it by the height and then doubling it. After you've found the area of one of these faces multiply it by 4 to find the areas of all the triangular faces. Finally add the base square which is the base times base.