Answer:
Option 'B' is correct.
Step-by-step explanation:
Since we have given that
Number of lemons used is denoted by 'y'.
Number of glasses of lemonade is denoted by 'x'.
As we can observe that ,

so we can write i as

By cross multiplication
<em>y=4x</em>
So, if write it in the form y=kx,
It will be y=4x.
Four CDs must be bought to receive a gift card from an <em>online</em> store.
<h3>How to determine the least number of CDs to be bought to receive a gift card</h3>
The <em>total</em> costs are equal to the sum of the <em>shipping</em> cost and the total related to the number of <em>acquired</em> CDs (n). The number of gift cards (m) is equal to the total costs divided by <em>minimum spent</em> money, that is, $ 50. We need to solve the following inequation to find the minimum quantity of CDs:
(12 · n + 5)/50 > 1
12 · n + 5 > 50
12 · n > 45
n > 45/12
n > 3.75
Four CDs must be bought to receive a gift card from an <em>online</em> store.
To learn more on inequalities: brainly.com/question/20383699
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Answer:
A and B
Step-by-step explanation:
Given
List of given options
Required
Which will correctly take 3 to fill the blank
Represent the blanks with x
Option A:

Convert to fractions

Multiply through by 4



Option B:

Convert to fraction;

Multiply through by 15




Option C:

Convert to fraction


Option D

Convert to fraction

Cross Multiply


Divide through by 3

From the above calculations.
<em>Option A and B can be filled with 3</em>
The sum of the infinite geometric series .. B.-1
Answer:

Step-by-step explanation:
Using PEMDAS rule
Parentheses, Exponents , Multiplication, Division, Addition, Subtraction
![\sf{4 [ 3 + 3(5 - 1) ]}](https://tex.z-dn.net/?f=%20%5Csf%7B4%20%5B%203%20%2B%203%285%20-%201%29%20%5D%7D)
Subtract 1 from 5
![\longrightarrow{ \sf{4 [3 + 3 \times 4 ]}}](https://tex.z-dn.net/?f=%20%5Clongrightarrow%7B%20%5Csf%7B4%20%5B3%20%2B%203%20%5Ctimes%204%20%20%5D%7D%7D)
Multiply the numbers : 3 and 4
![\longrightarrow{ \sf{4 [ 3 + 12 ]}}](https://tex.z-dn.net/?f=%20%5Clongrightarrow%7B%20%5Csf%7B4%20%5B%203%20%2B%2012%20%20%5D%7D%7D)
Add the numbers : 3 and 12

Multiply the numbers : 4 and 15

Hope I helped!
Best regards! :D