Answer:
Evaluate each given numbers, expressions or equation.
Check the values or numbers.
Now in order to solve we proceed in the manner
- Write the given variables
- Find the missing variables
Unit rate is 3.7 if that’s what you are asking for, you were not very specific.
If you add or subtract by a number you must add the equality sign
We are looking for the probability :

Transform the law to standard normal like this:

The above formula is equivalent to this one:

From normal law table, we read the value of

.

Solving the above equation for the score n:


, it is the score we are looking for.
we are asked to determine three equivalent ratios for fractions. in this case, we just have to multiply a number each for the numerator and the denominator. we take, 2,3, and 4 in this case.
4/3: 8/6, 12/9, 16/1212/14: 24/28, 36/42, 48/566/9: 12/18, 18/27, 24/36