Question

MATEMATICAS AYUDAAAAA​

Answer 1

20)

$\frac{1}{3} ( - 2) {}^{4} ( - \frac{1}{2} ) {}^{2} (5) {}^{3}$

$\frac{1}{3} (16)(0.25)(125)$

$\frac{1}{3} (500)$

$166$

21)

$0.7$

22)

$- 23.3333333$

23)

a= 2

b=1

c=no existe

m=0,75

x=-3

n=1,087757306

24)

$a = 4 \times (x + 3)$

25)

$(y {}^{2} )( \frac{y}{2} )$