An international calling plan charges a rate per minute plus a flat fee. a 10-minute call to france cost $3.19. a 15-minute call to france costs $4.29. write and solve a linear equation to find the cost of a 12-minute call to france

$3.63

Step-by-step explanation:

A 10-minute call to France cost $3.19.

A 15-minute call to France costs $4.29.

Now we will use two point slope form

Substitute the values :

y is the cost and x is the number of minutes

Now we are suppose to find cost of a 12-minute call to France

Substitute x = 12

Hence the cost of a 12-minute call to France is $3.63

4th option is correct xy=-10

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answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.