I thin the answer's B, 4/13
we have the expression

step 1
Group similar terms

<h2>The answer is option A</h2>
Answer:
The constant of proportionality is 2.50
Step-by-step explanation:
For a weight of 1 lb, the price is $2.50, so the price in dollars is related to the weight in pounds by the constant 2.50.
The constant of proportionality is 2.50 (dollars per pound).
3.2 x 108 The 8 is suppose to be an exponent of 10
Answer: 0.750
Step-by-step explanation:
Let p be the population proportion .
We are given that a sample of 400 voters reveals that 300 would support her in the November election.
Then the sample proportion for this situation will be :-

Since the sample proportion is the best point estimate for the population proportion.
Therefore, the estimated value of the population proportion =0.750