Dr. potter provides vaccinations against polio and measles. each polio vaccination consists of 4 doses, and each measles vaccination consists of 2 doses. last year, dr. potter gave a total of 60 vaccinations that consisted of a total of 184doses. how many polio vaccinations and how many measles vaccinations did dr. potter give last year?

X - number of polio vaccinationsy - number of measles vaccinations:x + y = 60    / * ( - 2 )4 x + 2 y = 184
- 2 x - 2 y = - 120+4 x + 2 y = 184=2 x = 64x = 64 : 2x = 3232 + y = 60y = 60 - 32y = 28 There were 32 polio and 28 measles vaccinations.

The answer would be b

The answer is 270 cars.you can do this by making a proportional relationship. for instance, 200 is the whole we are using, so on a “number line” 200 would be over 100%. now, since he sells 35% more, add 35% to 100% to get 135% on the other side of the “number line” on the bottom half, leaving the top half empty.cross multiply 200 by 135 then divide by 100 to get your answer. i hope this , if it did, , if you don’t mind, giving me brainiest! 200/100% } 200 • 135 /100 ? /135%