6. After a power failure, the temperature in a freezer increased at an average rate of 2.5 degrees F per hour. The total increase was 7.5 degrees F. Write an equation to find the number of hours until the power was restored. *

true !

step-by-step explanation:

if you was gonna solve for a, a is a   < -12

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