15
100%=20 questions
25%=X questions
X=25%×20=500
X=500/100
X=5
not B=20-5
not B=15 questions
This is a simple subtraction problem, but since you are in Elementary School, I will help you out.
Subtract $4,190.67 by $3,655.11 (remember, the bigger number should come first)
4,190.67
<span>-3,655.11
</span> ...56
When a small number is on top of a bigger number, borrow 1 number from the number next to it (in this case, 0 is smaller than 5, so you must borrow 1 number from 9, making it to 8), then add the small number by 10 (0+0=10)
<span>Then we continue...
</span> 4,190.67
<span>-3,655.11
</span> 35.56
Do the same thing with 4 and 1.
4,190.67
<u>-3,655.11</u>
535.56
<em><u>Answer: $535.56</u></em>
The x-intercept is present where y = 0
2x + 5y - 10 = 0
2x - 10 = -5y
2x - 10 = -5(0)
2x = 10
x = 5
The y-intercept is present where x = 0
2x + 5y = 10
2x + 5y - 10 = 0
5y - 10 = -2(0)
5y = 10
y = 2
10!=3628800
10-3=7
7!=5040
3628800/5040=720
The expression is (42*7) + (14+22)
