Can you get sum of 99 by using all numbers (0-9) and only one mathematical symbols ?

The answer is 9+8+7+65+4+3+2+1+0

Hope it helped you :)

Its 0+1+2+3+4+65+7+8+9

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