Answer:
10%.
Step-by-step explanation:
The distributive property.
15/45...divide both numbers by 15 = 1/3
The correct answer is the option A.
The explanation is shown below:
The option A is theoretical probability, because they did not make any experiment to determine the probability, while in the others options, they had to make equal tests for to determine the probability.
For example, Lisa had to attempted 25 basketball free throws to determine which one them she could make and, then, determine the probability. While Kelli did not have to make any test.
Pretend that the first term is 21, and the fourth term is 126
<span>it's the same thing. </span>
<span>126 =21 +3d </span>
<span>105=3d </span>
<span>d=35 </span>
<span>21 =a1 +6(35) </span>
<span>21=a1 +210 </span>
<span>a1=-189</span>
