Marlena owns a weekend pet care business and charges a standard fee of $25 per pet for the weekend. Marlena's expenses for each pet include $5 per day for care and $3
for pet food. Marlena uses the equation p = x[25 - (3 + 5d)] to determine her profit.
p = profit, in dollars
x = number of pets
d = number of days
Which equation could be used to find Marlena's profit when she cares for 6 pets?

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

How do you use the elimination method for this question? explain, because i really want to understand!