Answer:
y

Step-by-step explanation:
8 nickels = 40 cents
y < 8
x < 35
Let's test
1 nickel and 35 pennies. That doesn't work
4 nickel and 20 pennies. That works. Perhaps we be more precise?
5 nickels and 15 pennies. Right on the point. 20 coins.
Hope this helps :)
Have a nice day!
Answer:
in steps
Step-by-step explanation:
(2n+3)² - (2n+1)² = 4n² + 12n + 9 - 4n² -4n - 1
= 8n + 8 = 8 (n + 1) ... always multiple of 8
Answer:
(2x−3z)(3y−1)
Step-by-step explanation:
6xy-2x+3z-9zy
2x(2xy-1)+3z-9zy
2x(-1+3y)+3z(1-3y)
(2x−3z)(3y−1)