4th term = 0
an=an-1-5
F to the power of 4 times a = 0
Answer:
f(x) = x² + 8x + 9, f(x + 2) - f(x)
↓
4x + 20
Answer:

Step-by-step explanation:
So in this systems of equations, we know the prices of the items, so the coefficients will represent how many Mary is getting of that item. So you can represent amount of bread as the variable b and the amount of milk as the variable m. On the right will be the total amount spent, since multiplying the price by how much you buy should get you the price
So since at store A, she spends 44.20 and bread costs 2.20 and milk costs 3.60 you get

Since at store B, she spends 44.70 and bread costs 2.50 and milk costs 3.40 you get the equation:

Answer:
n = m − a
Step-by-step explanation:
Given:
a = m - n
Where,
a = Actual cost an item
m = Original price
n = amount of coupon
Solve the formula for the amount of the coupon
a = m - n
Add n to both sides
a + n = m - n + n
a + n = m
Subtract a from both sides
a + n - a = m - a
n = m - a
Amount of coupon, n = Original price of an item, m - Actual cost of an item, a
Answer:
i believe the answer is x=6