70 times .9 is 63 so 90 minus 63 is27 so it was $27
The alien would be about 20 LBS on the earth
Answer:
-2m -1
Step-by-step explanation:
(3m+5)-(6+5m)
Distribute the minus sign
(3m+5)-6-5m
Combine like terms
3m -5m +5 -6
-2m -1
C=2pir, so take half of 15 which is 7.5 and plug it in as r and you get 47.12. Or just look up circumference calculator on google.