HELP ME THIS IS DUE IN A HOUR.
How many sit ups did Emily complete?
SORRY IF ITS BLURRY

C 1098 is the right answe

1178 sit ups

Step-by-step explanation

38x31=1178

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

answer:

step-by-step explanation: