The phone company A Fee and Fee has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses
310 minutes, the monthly cost will be $68. If the customer uses 620 minutes, the monthly cost will
be $99.

A) Find an equation in the form y = mx + b, where x is the number of monthly minutes used and
y is the total monthly cost of the A Fee and Fee plan.
y =
B) Use your equation to find the total monthly cost if 980 minutes are used.
If 980 minutes are used, the total cost will be
dollars.

The equation is:

We have two points:

A)

Find the slope using these two points:

Use one of the points to find the y-intercept b:

The equation is:

B)

Find the value of y when x = 980:

The total cost is $135

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

answer: x=3 and y=4

step-by-step explanation: