Well, let's first find our rate of bags to meters.
If 12 bags of plaster covers 54m^2, then we need to divide 54 by 12 to figure out how many meters 1 bag of plaster covers. We will then use that rate and divide 36 by it in order to solve for how many bags of plaster is required.
54 / 12 = 4.5.
This means each bag of plaster covers 4.5m^2.
Divide 36 by 4.5;
36 / 4.5 = 8.
This means that we will need 8 bags of plaster to cover 36m^2.
I hope this helps!
Answer:
$11.28
Step-by-step explanation:
Given data
Cost of bicycle= $282
tax= 4%
let us find the sales tax
=4/100*282
=0.04*282
=$11.28
Hence the sales tax is $11.28
Answer: 
Step-by-step explanation:
Given : The amount of icing used for every 
of a cake = 
To find the unit rate in ounces of icing per cake, we need to divide 
by , we get
The unit rate in ounces of icing per cake = 
Hence, the unit rate in ounces of icing per cake =
Y = -2x - 3
When I put this into y2-y1/x2-x1 (equation to find slope) I did the coordinate pairs (3,-9) and (4,-11). When you plug it in it’s -11+9/4-3. This gets you -2/1, which is -2. That’s your slope. Then, in order to get the y-intercept, you can use any of those pairs. I did -9 = 3(-2) + b. -9=-6 + b and in the end this gets you -3 = b. So the full equation is y = -2x - 3.
