Answer:
let the number of race entries be x
55x+10,000-15x =55000
55x-15x=55000-10000
40x=45000
x = 500
It must receive 500 race entries.
Step-by-step explanation:
Answer:
it would be A
explanation: if you get $40 dollars and divide it by 4 (which would be equal to giving to 4 people) and then take 3 fourths of it your friend would be left with $10
Answer:
(1,4)
Step-by-step explanation:

(x,y)→(1,4)
Answer:
B
Step-by-step explanation:
because equal to mass over volume