Question

4 markers cost $7.04. Which equation would help determine the cost of 7 markers?

Answer 1

$7.04 divided by 4 will determine the cost of one marker.
which is $1.76

$1.76 (x) 

$1.76 (7) = $12.32

Answer 2

4x=7.04
7x=y
And you use cross multiplying
4x×y=7.04× 7x
x
You delete x'es
4*y=49.28
y=12.32