Answer:
a ) 81
b ) 16807
c ) 1001000000
d ) 78125
Step-by-step explanation:
a )
3^2 x 3^2
= 9 x 9
= 81
b )
7 x 7^4
= 7 x 7 x 7 x 7 x 7
= 16807
c )
10^9 + 10^7
= 1000000000 + 10000000
= 1001000000
d )
5^8 ÷ 5
= 5 x 5 x 5 x 5 x 5 x 5 x 5 x 5 / 5
= 5 x 5 x 5 x 5 x 5 x 5 x 5
= 78125
