Write an equation that describes the pattern.

Input (a) 8 12 16 20 24 28
Output (b) 11 15 19

a − 3 = b

a + 4 = b

a + b = 3

a + 3 = b

Write an equation that describes the pattern.

Input (m) 20 30 40 50 60 70
Output (n) 15 25 35

m − 5= n

m + 10 = n

m + 5 = n

m − n = 5

Find the next three numbers in the pattern.

Input (x) 27 25 23 21 19 17
Output (y) 24 22 20

19, 18, 17

18, 16, 14

18, 20, 22

18, 14, 10

The amounts the cafeteria collects serving lunch are shown. How much would the cafeteria collect for serving 30, 40, and 50 students lunch?

Students Amount
10 $30
20 $60
30
40
50

$70, $90, $110

$90, $120, $150

$70, $80, $90

$90, $130, $160

The amounts collected for tickets are shown. How much would be collected for 15, 20, and 25 tickets?

Number of Tickets Amount Collected
5 $10
10 $20
15
20
25

$30, $35, $40

$30, $40, $50

$30, $50, $70

$25, $30, $35