(0.75 * 3.5a) + (0.75 * -6b) = 2.63a -4.5b
It is simplified.
Step-by-step explanation:
Well, r^-7 is bassically 1/r^7
same thing for s
s is bassically 1/s^12
So 1/s^12 + 1/r^7
Answer:x+x-61=489
2x=489+61
x=550/2
x=275 adults
Step-by-step explanation:
