Pls help me with this question

$2.22 tip for a $14.80 order~ Proportional to Mikel's tip

$1.86 tip for a $10.50 order~ Not proportional to Mikel's tip

$0.78 tip for a $5.20 order~ Proportional to Mikel's tip

Proportional

Not proportional

Proportional

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000