What is the first term in the sequence for which d = -2 and a7 = 3? a. -6 b. 12 c. 15 d. -12 select the best answer from the choices provided a) a b) b c) c d) d

Final answer is c. 15

Step-by-step explanation:

We need to find about what is the first term in the sequence for which d = -2 and a7 = 3

We will use nth term formula of arithmetic sequence.

we have been given a7 that means 7th term is 3

so plug n=7, d=-2 and a_n=3 into above formula

Hence final answer is c. 15

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points