The ratio of the price of a pen to the price of a ruler is 4:3 if the price of the ruler increases by 70p and then the ratio becomes 4:5 The price of pen is?
the price of the ruler before the increases is ?

I’m stuck on this equation, anyone got the answer?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?