Rob maintains an average monthly balance on his credit card of $1,900. His credit card company charges 21% interest annually, which it bills at a rate of 1.75% per month. How much is Rob spending on credit card interest per year?

b, i believe, but not sure.

the real question is why is this guys last name heavyfoot

step-by-step explanation:

$450 i think. hope this ☺

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.