Adam had 91dollars. if he spent 21 dollars on new books, what is the ratio of the money he still has to money he's spent.

3/13

Step-by-step explanation:

ratio is another way to say fraction, so we have 21/91.  This can be reduced if we divide by 7: 21/7 = 3, 91/7 = 13.  Now we have 3/13.  You can write it as 3:13 or 3/13.

$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)

step-by-step explanation:   divide the numerator by the denominator to get the decimal

it would still be 193

if divide by 100 then 1.93

i am not sure