First, see how much money you have:
10 + 3(5) + 8(1) + 12(0.25) + 5(0.1) + 10(0.05) =
10 + 15 + 8 + 3 + 0.5 + 0.5 =
37
You need to deposit $7 into the safe, since 37 - 7 = 30.
The number of ways of she can do it is 504 ways
<h3>What is permutation?</h3>
The formula for permutation is given as:
Permutation = 
Where:
- n is the total number of objects = 9
- r is the number selected = 3
Substitute into the formula
Permutation = 
P( 9, 3) = 
P( 9, 3) = 
P( 9, 3) = 504 ways
Thus, the number of ways of she can do it is 504 ways
Learn more about permutation here:
brainly.com/question/12468032
#SPJ1
Answer: <em>a = [ 65.8]</em>
Step-by-step explanation:
<em>A = 18°</em>
<em>B = 28°</em>
<em>b = 100</em>
<em>a = [ x ]</em>

Divide 384 by 12 then multiply it by 5 to give you 160