The last one. And I did answer for you too.
Answer:
9
Step-by-step explanation:
-5×3+7×4-54÷9+2
-5×3+7×4-6+2
-15+28-6+2
-15-6+28+2
-21+30
9
We are given the series of <span>a1 = -5 a2 = 20 a3 = -80. In this case, we can see that this is a geometric sequence with a geometric ratio equal to 20/-5 = -80/ 20 or equal to 4. Hence, r is equal to 4, a1 is equal to -5.
The geometric sequence formula is an = a1*r^(n-1) = -5 * (-4)^ (n-1) where n is an integer. Answer is B.</span>
<span>9 + 0.07 + 0.005 this is expanded form i hope this is what u wanted as an answer</span>
Well for example: 10/1 divided by 1/2
What you will do you would flip 1/2 it would now become 2/1
Then you change the sign to multiplication so your equation will look like 10/1*2/1 then just multiply from there on out.
