Answer:
Add the <u>absolute</u> values of the integers.
Step-by-step explanation:
138.23
2πrh+2πr^2=2·π·2·9+2·π·2^2
983040
Second Year : 15x4=60
Third Year : 60x4=240
Fourth Year : 240x4=960
Fifth Year : 960x4=3840
Sixth Year : 3840x4=15360
Seventh Year : 15360x4 = 61440
Eighth Year: 61440x4=245760
Ninth Year : 245760x4= 983040
800 ft are in 800 sq ft.
233.33 mg
9x = 2100
---> x = 2100/9
---> x = 233.33 mg
here's the answer to your question
