Susan got a prepaid debit card with $20 on it. For her 1st purchase with the card, she bought some bulk ribbon at a 23 cents per yard. If after the purchase there was $16.09 left on card, how many yards of ribbon did Susan buy?

15

Step-by-step explanation:

17 Yards

Step-by-step explanation:

First do 20 subtracted by 16.09 which is 3.91

So 3.91 was spent on ribbon which is 0.23 per yard

So divide 3.91 by 0.23 which is 17

So 17 Yards is equal to $3.91

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.