Answer:
Volume of pyramid = 317 units³
Step-by-step explanation:
Volume do triangular pyramid = ⅓ × Base Area × height of pyramid
Base area = ½*bh = ½*8*14 = 56 units²
Height of pyramid = 17
Volume of pyramid = ⅓ × 56 × 17
Volume of pyramid = 317 units³ (to nearest whole number)
X=9
3x-12=x+6
2x-12=6
2x=18
X=9
The identity property is shown
There are 12 Nickels, 9 Quarters, and 15 Dimes.