Question

solve these

I will mark branliest


plz help​

Answer 1

1.-9/49

2. (5/7)³

3.i.6⁰+7⁰+8⁰

=1+1+1=3

ii.5⁷+5⁶+5²

=93,775

iii.(5-³)-¹

= 5-⁴ = 0.0016

iv.4³/4-⁷

= 4³×4⁷ =1,048,576

4.i .864

5. 2⁴×1×5⁴

= 10⁴

6. by solving we get

7 = 2n-1

2n = 8

n = 4

7. by solving we get

2+X=7

X = 5

I HOPE THIS HELPS YOU.