Maria called her sister long distance on Wednesday.
The first 5 minutes cost $3, and each minute after
that costs $0.25. How much did it cost if they talked
for 15 minutes?

5.50$

Step-by-step explanation: The first 5 minutes are 3$, and the additional 10 minutes are .25$ a piece. You multiply 10 minutes by .25$ to get 2.5$. Now, you add the 3$ and 2.5$ to get 5.50$.

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.

answer: the answer is   graph (a)