Its already in simplest form u cant simplify it hope this helps!!
For a;

For b;

If my calculations are incorrect, then sorry ;/
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Answer:
B.12 ounces
Step-by-step explanation:
step 1
Find out the ounces of orange juice concentrate used yesterday
Let
x ----> ounces of orange juice concentrate used yesterday
y ---> ounces of water used yesterday
we know
that
----> equation A
----> equation B
substitute equation B in equation A
solve for x
step 2
today she wants to make twice as much orange juice.
To find out how much orange juice concentrate she needs, multiply the ounces of orange juice concentrate used yesterday by 2
so
Answer: 2
Step-by-step explanation:
You are not really asked how to find the solutions, just how many there are. The easiest way to solve this is to use a program like Desmos and graph the question. I have done this for you.
Red: line -2x + 1
Blue: quadratic y = -2x^2 + 1
Answer: 2
(x + 10(x - 10)
x^2 + 10x - 10x -100
x^2 - 100
a. + (-10x)
b. 0x
c. + (-100)
d. (-100)