31/35 divided by 19/70
3(21)(x^2 - 5x
,
2.5% of 500
4/7 - 3/10
2.5% £500
3/5 + 2/7
a savings account give2.5% compound interest annually invest £500 and leaves it to grow 4 years
200-1+199
x/4x-3 - x+1/2x-1=2