Question

Please look at the image

Answer 1

Answer:

$r \geqslant - 5$

Step-by-step explanation:

$50 - 4r \leqslant 70$

$- 4r \leqslant 20$

$\frac{ - 4r}{ - 4} \geqslant \frac{20}{ - 4}$

$r \geqslant - 5$