Ado, Ben and Kolo are aged 12, 14 and 20 respectively. They share N690 in the ratio of
their ages. How much does each get?

Heya dear

df =

both have same length

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.