Simon makes 30 cakes.
he gives 1/5 of them to sali.
he gives 10% of the 30 cakes to jane.
what fraction of the 30 cakes does he have left?

Step-by-step explanation:

1/5 of 30 is 6. So sali got 6 cakes.

10% of 30 is 3. So Jane got 3 cakes.

9 cakes out of 30 gone. 21 left

Fraction left is 21/30 or 7/10 After simplification

the answer

b. they are parallel and will never intersect.

thats not a system of equations, that is a solution