There is a 73.5% chance that Nathan is allergic to penicillin and the test predicts it.
75% * 98% = 73.5%
.75 * .98 = .735
The cost to rent the canoe for 7 hours is $ 104
<em><u>Solution:</u></em>
At eagle bay it cost $12 per hour to rent a Canoe
Nate and his friends rented a canoe for 4 hours and paid $68
Let "x" be the number of hours rented
We can solve use the point slope equation

Where, "m" is the rate of change
is the sample point
From given,
m = 12

Therefore,


Thus the linear equation is found
Here, "y" represents the amount paid for "x" hours
<em><u>Find the cost to rent the canoe for 7 hours</u></em>
Substitute x = 7 in linear equation
y = 12(7) + 20
y = 84 + 20
y = 104
Thus cost to rent the canoe for 7 hours is $ 104
That would be 30C4 - combinations of 4 from 30.
= 30*29*28*27
---------------- = 27,405 Answer
4 * 3 * 2 * 1