Answer:
b
Step-by-step explanation:
because u have to use the formula i hope that helps
A mixed number consists of a whole number and a fraction.
23.7523 will be the whole number.
0.75 will be the fraction.
To convert 0.75 into a fraction, set it over 100 and simplify.

<span>A) 2x - 4y = 10
B) 7x - 9y = 12
Multiplying equation A by -3.5
A) -7x +14y = -35 then adding B
B) </span><span><span>7x - 9y = 12</span>
5y = -23
y = -4.6
</span>
2x -4*-4.6 = 10
2x + 18.4 = 10
2x = -8.4
x = -4.2
It has one solution (-4.2, -4.6)