Kedar is comparing the costs of phone plans. for phone plan a, the cost is $15.00 to connect and then $0.02 per minute. for phone plan b, the cost is $4.69 to connect and then $0.08 per minute. for what usage does plan a cost the same as plan b

 After 172 minutes (approx) the usage of plan A is same as the plan B.

Step-by-step explanation:

Here, For phone plan A, the cost is $15.00 to connect and then $0.02 per minute.

And, For phone plan B, the cost is $4.69 to connect and then $0.08 per minute.

Let after x minutes the total usage of plan A is same as plan B.

Therefore,

Thus, after 172 minutes (approx) the usage of both plan will be same.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

the forst and 3rd

step-by-step explanation: