Answer:
the answer is -30
Step-by-step explanation:
2xy=2*5*-3
= -30
Answer:


Step-by-step explanation:
Given

Solving (a): The cost function:
From the given parameter, it shows that the number of floor has no effect on the floors.
So, represent the floors with x.
The cost function is:

Solving (b): The slope and its interpretation
A function is represented as:

Where:

By comparing:
to 

So:

<em>What it means is that, no matter the number of floors, the cost remains unchanged.</em>
Answer:
B
Step-by-step explanation:
2/3 ÷ 1/6
=2/3 × 6/1
sorry if I got it wrong
Answer: 24 laps
Step-by-step explanation: it’s a ratio, so a fraction. 4/6 = x/36
cross multiply and get 6x = 144
divide by 6 and get x = 24
1000 kilograms
Hope this helps