An equation that is not true for even one real number is called a/an \( \square \) equation.

Which real-world problem is most likely to involve irrational numbers? (1 point)

Use properties of logari \( \log \left[\frac{100 x^{4} \sqrt[3]{8-x}}{7(x+9)^{2}}\right. \) \( \log \left[\frac{100 x^{4} \sqrt[3]{8-x}}{7(x+9)^{2}}\right]= \)

12. Which value of \( b \) makes the equation true? \[ -0.8(10-35 b)=-2 b+82 \]

Regla de 3 simple (si una persona entrega 500 mtr2 en pintura de piso en 4 dias, 4 personas en cuanto tiempo lo entregan ???

(4) \( \sqrt{25}+30: 10 \cdot(-5)= \) (2) \( (-4): 2-8+3 \cdot 5= \) (3) \( 3(x+2)+3=28 \) (4) \( 2 x+4^{2}=100 \)