Answer:
Step-by-step explanation:
A. In each drawing, the odds of choosing green is 7 / (7 + 13 + 9) = 7/29
with replacement, the odds in each drawing are the same
7/29•7/29•7/29 = 7³/39³ = 343 / 24,389
B.
Odds of drawing all non black balls is the sum of odds of drawing the following possible patterns
ggg + ggr + grg + rgg + rrg + rgr + grr + rrr
(7•6•5 + 7•6•9 + 7•9•6 + 9•7•6 + 9•8•7 + 9•7•8 + 7•9•8 + 9•8•7) / 29•28•27 = 3,360/21,924
First you need to write the numerical equation for the given:

When you will simplify this fraction, you can divide the expressions. Based on the law of exponents when you divide like terms with different exponents, you can subtract the exponents of the denominator from the numerator.
So if you will simplify the equation:

Subtract the following:
Exponents of a 7-4 and;
Exponents of b 8-4
Your answer should be
Answer:
16
Step-by-step explanation:
do the parenthesis first, you get 11 2/3 from that. Then do 4 1/3 + 11 2/3, you get 16
Answer:
$3.75.
Step-by-step explanation:
To solve this, we will simply need to subtract the amount already paid from the amount he needs to pay.
15.75 - 12.00 = $3.75