Answer:
105
Step-by-step explanation:
Substitute X for 7: 3(7)(7-2)
Simplify: 21(5)
Multiply: 105
6/y=9/5(due to similarity)
y=6*5/9=30/9=10/3=3.333..
The volume of a cone is 1/3 pi r^2 h, so plug this in to get the answer
Step-by-step explanation:
first you have to do the subtraction in the parentheses so it's 8+3(4) and then you multiply the 3 by 4 (only the 3 because the 8 isn't next to the multiply) and then you have 12, add 8 and it's 20
