Answer:
I'm sorry but I don't know English so I can't help you
Step-by-step explanation:
how do i tell you i don't know english so i can't help you friendy and well, I don't know why it won't let me upload my answer xd
One equivalent fraction for 4/21 could be 8/42.
To find the inverse, switch the variables and solve for f(x).
x = e^f(x) + 6
x - 6 = e^f(x)
f(x) = ln(x-6)
hope this helps :)
You can do 3 quarter's and 9 nickels. or 12 dimes or half dollar and quarter and 9 nickels