To get a you have to have a on its own side
56a=7/4
divide 56 on both sides
a=56/1 divided by 4/7 (switch 7/4 to 4/7 because you are going from division to multiplication)
a=32
Hope this helped
Interept!
in the formula y=mx+b, the m=slope, and the b=the intercept
hope this helps!
Considering the sum and the product of the roots of the quadratic equation, it is found that the numeric value of the expression is given as follows:

<h3>What are the sum and the product of the roots of a quadratic equation?</h3>
A quadratic equation is defined as follows:

The roots of the equation are given as follows:

The sum of the roots is given as follows:

The product of the roots is given as follows:

In the context of this problem, the product is of 4, as
hence:
c/a = 4
c = 4a.
The coefficients are in an arithmetic progression, hence:
- b = a + d. (d is the common difference of the sequence).
We have that c = 4a, hence:
4a = a + 2d
2d = 3a
d = 1.5a.
Hence coefficient b is calculated as follows:
b = a + d = a + 1.5a = 2.5a.
Then the sum of the roots is given as follows:

More can be learned about quadratic equations at brainly.com/question/24737967
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1. common differece, d = a2 - a1d = -8 - 9 = -17d = -25 - (-8) = -17
2. first is solve the common differece,dd = 10.5 - 13 = -2.5so an = 15.5 - 2.5n is the answer
3. a(x) = 440 + 65xwhere x is the number of weeksa(25) = 440 + 65(25)a(25) = $2065