Answer:
(1.) 0.72/20 (2.) 1.98/20 (3.) 17.3/20
Step-by-step explanation:
Multiply .036, .099, and .865 each indivigually by 20 to get the numerators for each fraction.
She has 1/6 of her money left, which is $21.
2/3=4/6, so 4/6 + 1/6=5/6, which means she has 1/6 left. Divide $126 by 6 and you get $21.
Answer:

Step-by-step explanation:
Given

Required
Find n
Simplify (n + 1)!

Factorize
![n![2(n+1) + 6] = 3(n+1)*n!](https://tex.z-dn.net/?f=n%21%5B2%28n%2B1%29%20%2B%206%5D%20%3D%203%28n%2B1%29%2An%21)
Divide both sides by n!

Open brackets


Collect like terms


Multiply both sides by -1

X and y are proportional with d and f
Answer:17 5/6
Step-by-step explanation: