Answer:
Yes, the cost
in dollars and the amount of yogurt
are proportional.
The equation is: 
Step-by-step explanation:
1. If
varies directly as
, you can write it as following:

Where
is the constant of proportionality.
2. Let's calculate the value of the constant of proportionality. If
and
, you have:

3. Then, the equation is:

4. Let's verify if they are directly proportional. Substitute
which is the amount of yogurt bought by Jonah. The result must be $0,48:

5. They are directly proportional.
Answer:
4 variables
Step-by-step explanation:
Hope you pass your test!
Per month means multiply
Total means the amount your ending with but for this you could say add
Final answer f = 4.75 + 10m
Answer:
0.29
Step-by-step explanation:
We are given that there are 4 couples i.e. 8 people
They decide to play as teams of two and to select the teams randomly
Now we are asked How likely is it that every person will be teamed with someone other than the person he or she came to the party with
For people 1 , there are 6 options for pairing Since he or she cannot pair with his /her own partner
So, Choices For people 1 will be 6 person
So, Probability that person 1 will be teamed with someone other than the person he or she came to the party with = 
So, Probability that every person (=8 person) will be teamed with someone other than the person he or she came to the party with =
Hence Probability that every person will be teamed with someone other than the person he or she came to the party with is 0.29
To be able to answer this item, one simply needs to find the square root of 56. Using the calculator, the square root of 56 is approximately equal to 7.48. Thus, the answer to the item are 7 and 8.
Another approach to answering this item is that we get familiar with the perfect squares there is under 100. The nearest perfect squares to 56 are 49 and 64. 49 is the square of 7 and 64 is the square of 8. Thus, the answers to the item item are 7 and 8.