So what do you want to know about it? We need more info on this.
2/3= 0.6667 which you can figure out by 2÷3
3/4= 0.75 which you can figure out by 3÷4
because 0.75 is greater than 0.6667 she has enough to make the cake.
2.5% per year multiplay by 5 equals 12.5% then multiple 2500 with 12.5 equals 312.5