
But x must be a natural number, so the answer is

.
Answer:
i think 11
Step-by-step explanation:
Answer:
9x^2-6x+6x-4
Step-by-step explanation:
Answer:m(.70)+80(.25)=.6(m+80)
.7m+20=.6m+48
.1m=28
m=28/.1=280 gallons of 25% antifreeze needed
Step-by-step explanation: