Question

Me ajudem!!!!!! aaaaaaa

Answer 1

Explicação passo-a-passo:

a)

$y = 12 + 0.2x$

b)

$y = 12 + 0.2 \times 35 \\ y = 12 + 7 \\ y = 19$

c)

$y = 12 + 0.2x \\ 19.8 = 12 + 0.2x \\ 19.8 - 12 = 0.2x \\ \frac{7.8}{0.2} = x \\ x = 39$