Awoman is three times as old as her son. her son is 15 now. how old was the woman when her son was born?

She was 30 when he was born.

Step-by-step explanation:

If he's 15 then she's 45, because 15 x 3 = 45.

15 years ago he was born so just minus 45 by 15, 30.

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )