Devin is skip counting. 5, 10, 15, 20, 25, 30, 35. What rule does this pattern follow?

he is skip counting by 5s

Step-by-step explanation:

the rule is +5

Step-by-step explanation: 5+5=10 10+5=15 15+5=20 20+5=25 25+5=30 30+5=35

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110