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​

answer: 40.95

step-by-step explanation:

can you make your screen more see able?

then i might be able to .

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!