It is 8y4 becuze 8*2=64 and 4*2=16 and u *2 becuze *2 means square root sorry if I'm wrong :)
Answer:
380; 5% increase is 399
39; 33% decrease 26.13
48; 15% increase 55.2
3,000; 325% increase 12,750
160; 20% decrease 128
Step-by-step explanation:
Answer:
39 hours
Step-by-step explanation:
Mary earns an hourly wage of $13
plus a $90 bonus.
Her total paycheck shows she received $597
Subtracting the bonus we get;
$597 - $90 = $507
1 hour -> she gets $13
how many hours will she get $507
Cross multiplying gives;
hours
By using the rule -b/2a —> 12/-6= -2