E Write an expression, in terms of n, for the number Oditi gets when she:
a adds 1 to the number
b subtracts 10 from the number
c multiplies the number by 100
d divides the number by 1000
multiplies the number by 2 then adds 3
f divides the number by 4 then subtracts 5
8 multiplies the number by 6 then subtracts 7
h divides the number by 8 then adds 9
i divides 1 by the number then subtracts
i divides 10 by double the number
k adds 20 to the number then multiplies the result by 3
subtracts 3 from the number then multiplies the result by 20.
2 Write an expression, in terms of .x, for the perimeter of each shape.
Write each expression in its simplest form.
b
5x - 4
3x
*+5
d
3x-2
с
x + 5
5x - 2