Whats the answer pls thankyou

Step-by-step explanation:

400×10^3

or 4×10^5 is more convenient

anyone answer is correct I hope it helps u

1.true 2.false? ? i think. .

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk