Answer:
there are 45 people in the group
2/3xA=30
2A=30x3
A=90/2
A=45
(3r^-2s^3t^0)^-3
~~~~~~~~~~~~~~ r (s)
3
=1/3 r^7 s
~~~~~~~~~
27s^9
= r^7
~~~~~~~
81s^8
Answer is =r^7/ 81s^8
Answer:
9144
Step-by-step explanation:
2 x 1016 = 2032
7 x 1016 = 7112
2031 + 7112 = 9144