The table shows the number of minutes jalen talks on his mobile phone and the cost of the phone calls. jalen’s mobile phone cost number of minutes, x 150 220 250 275 cost, y $7.50 $11.00 $12.50 $13.75 if the cost varies directly with the number of minutes jalen talks on the phone, which equation represents the variation?

Step-by-step explanation:

Given :

x                    Cost, y  

150               $7.50  

220              $11.00

250              $12.50  

275              $13.75

To Find: If the cost varies directly with the number of minutes Jalen talks on the phone, which equation represents the variation?

Solution:

To find equation we will use two point slope form.

Substitute the values in the formula.

Hence the equation which represents the variation is  

answer

explanation

the area of a circle is calculated using the formula

or

we can use any of the above formulae to calculate the required. preferably, let us use the latter since the diameter is

we substitute the diameter into the formula to get:

this is the exact value for the area of the circle.

the correct answer is a

answer: rolling a number cube and flipping a coin.

step-by-step explanation: