The answer is 5 and 6
Hope this helps
Answer:

Step-by-step explanation:
Given
Cost of Textbooks ---- Frequency
$25 up to $35 ----- 2
$35 up to $45 ------- 5
$45 up to $55 ------- 7
$55 up to $65 ------ 20
$65 up to $75 ---- -- 16
Required
Determine the relative class frequency for the $25 up to $35 class
First, we need to get the total frequency


Next, is to write out the frequency of $25 up to $35 class

Divide this frequency by the total frequency; This gives the relative frequency



Hence;
Option D answers the question
Answer:
(-7)×(-7)=+49
You change the signs and multiple
<h3>The formula that correctly relates H and L is H = L + 14.8</h3><h3>The high temperature is 83.7 degrees</h3>
<em><u>Solution:</u></em>
Let H represent the high temperature
Let L represent the low temperature
Given that,
<em><u>The coldest temperature in the city today was 14.8 degrees (Fahrenheit) lower than the hottest temperature</u></em>
L = H - 14.8
Rearrange,
H = L + 14.8
<em><u>If the low temperature was 68.9 degrees, what was the high temperature?</u></em>
L = 68.9
Then,
H = 68.9 + 14.8
H = 83.7
Thus the high temperature is 83.7 degrees
13 + 49 = 62
62 - 12 = 50
The answer is 50