Raina purchased a prepaid phone card for $25. long distance calls cost 8 cents a minute using this card. raina used her card only once to make a long distance
call. if the remaining credit on her card is $22.84, how many minutes did her call last?

27 minutes.

Step-by-step explanation:

Start by finding the amount she used and not the amount she has left. She used $2.16. Divide this amount by .08 representing the cost per minutes and you will get 27 whole minutes as your answer. Hope this helps:)

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

true

step-by-step explanation: