Answer:
2, 0, -2, -4
Step-by-step explanation:
an = 4 − 2n
a1 = 4 - 2(1) = 2
a2 = 4 - 2(2) = 0
a3 = 4 - 2(3) = -2
a4 = 4 - 2(4) = -4
The answer is 15% as the discount
Answer:
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With negative exponents you make it a fraction.
For example with your equation it would be
1/2^7<2
So basically you just flip the fraction to cancel out the negative then you can continue to solve.