Find the proportion of observations in a standard Normal distribution that satisfies the following statement. -1.25 Find the z-table here.
O 0.0356
O 0.1056
O 0.4951
O 0.8840
O 0.9896

the formula for the cost is

c = l + p

Total cost is £47

Step-by-step explanation:

Let c represent the cost in £ of a monthly phone contract made up of the fixed line rental l in £ and the price p in £ of the calls made.

The formula for the cost, c would be

c = l + p

if the line rental is £35 and the price of calls made is £12, then, the total cost, c would be

c = 35 + 12 = £47