Answer:y=7
Step-by-step explanation:x=2+7=8
<span>4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.</span>
Answer:
Area of the base is 10.5 cm².
Step-by-step explanation:
Formula for the volume of the given oblique prism = Area of the triangular base × Vertical height between two triangular bases
Vertical height = 6 cm
Volume = 63 cm³
From the formula,
63 = Area of the triangular base × 6
Area of the base = 
= 10.5 cm²
Therefore, area of the base is 10.5 cm².