60% of the class are girls. there are 18 girls
- how many students are there in the class?
- how many boys are there?

Sandy is ordering bread rolls for her party, she wants 3/5 of the rolls to be whole wheat. what other factions can represent part of the rolls that will be whole wheat? shade the models to show your work.

If a || b and e || f , what if the value of y ?

What is the equation of the parabola with focus (-1,-1) and directrix y=1?