Lynn takes her puppy, olive, to a doggy daycare. the price for the daycare is $21 per day along with a monthly admission fee of $48. last month lynn paid a total of $426. which equation can be used to find the number of days, d, that olive spent at daycare, and how many days was she there?
a.
21d + 48 = 426; 18 days
b.
48d + 21 = 426; 8 days
c.
426d - 21 = 48; 7 days
d.
48d + 426 = 21; 9 days