Find the 64th term of the following arithmetic sequence .

12,19,26,33 ...

sequence 12,19,26,33

1st term = 12

comman difference = 19 - (12) = 7

comman term = a + (n-1)d

a= first term

d= difference

comman term = a + (n-1)d

                       = 12 + (n-1)(7)

                       = 12 +7n-7

                       = 7n +5

1st term --> n =1 = 7.1 + 5 =  12

2nd term --> n =2 = 7.2 + 5 =  14 + 5 = 19

64st term --> n =64 = 7.64+ 5 =  448+5 = 453

Step-by-step explanation:

d

because parallelagram have all 4 angels the same size dependeing and a rectangle and square are oth parallelogram

she will sew have sewn five dresses   and be 1/3 done with the sixth one in an hour.

step-by-step explanation:

3/4 of an hour=45 mins

lucy makes 1 dress per 11.25 minutes

45 mins+11.25 mins=56.25 mins

60 mins- 56.25 mins=3.75 mins

3.75 mins is 1/3 of of 11.25 mins

therefore she the other 1/3 would be part of the hour and she will have sewn 5 dresses and begun the sixth.

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