The charges for telephone calls ,t is partly constant and partly varies with the number n if unit of calls, the bull for 420 units of call is 806 while the bill for 20o unit is 410, Obtain the charges per unit of calls
Find a formula for t​

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

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2