1. It illustrates the commutative property of multiplication because the answer is the same even if you switch the order.
2. B because the answer is the same if you switch the places of the parentheses
3. B same reason as above
4. A because no matter what order, the answer is the same
(2x-2/2) = (15-6x)
2x-1 = 15 -6x
2x+6x = 15 +1
8x = 16
8x/8 = 16 /8
x = 2
To solve this question, use the Cube surface area formula
Area = 6a^2 in which a = edge.
edge = 8.5
Area = 6(8.5)²
Simplify. Follow PEMDAS
Area = 6(72.25)
Area = 433.5
(C) 433.5 in² is your answer
hope this helps
Answer:
$20 per day with a $50 fee
Step-by-step explanation:
For 1 day, the gold fee is $70. For 2 days, the gold fee is $90. This can be written as the ordered pairs (1, 70) and (2, 90).
To find the daily fee, we will find the slope between the points:
Next we will use point-slope form:
y-y₁ = m(x-x₁)
y-70 = 20(x-1)
Use the distributive property:
y-70 = 20(x)-20(1)
y-70 = 20x-20
Add 70 to each side:
y-70+70 = 20x-20+70
y = 20x+50
This means the fee is $50.