43.12(bar on 12) in p/q form.

1423/33

Step-by-step explanation:

Let x = 43.121212

Two digits are repeating after decimal point. So multiply both sides by 100

100x = 4312.1212       (I)

    x =      43.1212     (II)   { subtract equation (II) form (I)}

99x =      4269

x= 4269/99   {reduce to simplest form by giving by 3rd table}

x = 1423/33

table 1

step-by-step explanation:

1-16

2-32

4-64

8-128

all multiples of 16

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !