Answer each multiplication problem by using the difference or two
ication problem by using the difference of two squares. show your steps.
5) 73.67
6) 34.26
7) 65.55
8) 81 - 79
answer urgently plz

5) 70²= 4900 4900-9=4891

6) 30²= 900 900-16=884

7) 60²= 3600 3600-25=3575

8) 80²= 6400 6400-1=6399

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

step-by-step explanation:

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