1) an = a1 + d*(n-1) => a20 = -4 + (-9)*19 = -4 - 171 = - 175
1) ---> C)
2) a81 = 20 + 4*80 = 340;
2) ---> A)
3) a12 = ?
3) ---> B) or D).
The cost in dollars is given as 50 + 0.50x, so ...
f(x) = 0.50x +50
B) You want to find x for f(x) = 100. Substitute the given numbers and solve for x.
100 = 0.50x +50
50 = 0.50x
50/0.50 = x
100 = x
You drove 100 miles during the week if the cost was $100.
Answer:
Its D
Step-by-step explanation:
The brackets show tht 3 is multiplied with 7 AND M.
<em><u>Stranger</u></em><em><u> </u></em><em><u>things</u></em><em><u> </u></em><em><u>fan</u></em><em><u> </u></em><em><u>huh</u></em><em><u>?</u></em><em><u> </u></em>
<em><u>Same</u></em><em><u> </u></em><em><u>here</u></em><em><u> </u></em><em><u>;</u></em><em><u>)</u></em><em><u> </u></em>